# The Chronicle of Monaco: A rock above the sea held for seven centuries by one family, the longest-reigning dynasty in Europe. History of Monaco: A rock above the sea held for seven centuries by one family, the longest-reigning dynasty in Europe. 5 eras and 23 sourced events… Canonical: https://terralore.co/country/MCO/chronicle Updated: 2026-06-13 Founding: François Grimaldi seizes the Rock of Monaco — 8 January 1297. Monaco's founding moment is dated to the night of 8 January 1297, when François Grimaldi, a Genoese Guelph nicknamed Malizia ('the Cunning'), took the fortress on the Rock of Monaco from its Ghibelline garrison by disguising himself in the habit of a Franciscan friar and concealing his weapons beneath the robe. The ruse is commemorated to this day in the princely coat of arms, whose supporters are two monks bearing swords. Though the Grimaldi were driven out and only secured permanent possession in the decades that followed, the seizure of 1297 is taken as the origin of the Grimaldi presence in Monaco. The dynasty it founded still reigns, making the House of Grimaldi the longest-ruling family in Europe. The fortress they captured, begun by Genoa in 1215, remains the core of the Prince's Palace seven centuries later. Monaco's history is the story of how a single fortified rock on the Ligurian coast became a sovereign principality and stayed one against far greater powers. The harbour was known to the Greeks as Monoikos, sacred to Hercules, and to the Romans as Portus Herculis Monoeci. The modern state began as a Genoese fortress founded in 1215, but its defining moment came on 8 January 1297, when François Grimaldi, called Malizia, seized the Rock disguised as a Franciscan monk, beginning a Grimaldi rule that has never ended. For centuries the lords and then princes of Monaco preserved a precarious independence between Genoa, France, Spain and Savoy, sheltering under Spanish protection and then, by the Treaty of Péronne in 1641, under French. In 1861 Monaco ceded Menton and Roquebrune to France, losing the great bulk of its territory, but won recognition of its sovereignty and, in the founding of Monte-Carlo and its casino, the means to rebuild its fortunes. Treaties of 1918 and 2002 bound Monaco's sovereignty closely to France while guaranteeing its survival, and the principality, modernised under Rainier III and his wife Princess Grace, joined the United Nations in 1993 and today uses the euro. This file carries the chronicle's sourced event record — every event with its year, summary and source keys (resolved under References below). The full reading narrative lives on the canonical page. ## Monoikos: The Harbour of Hercules — c. 550 BCE – c. 1200 CE A sheltered Ligurian harbour sacred to Hercules served Greek and Roman shipping long before any state called Monaco existed. - c. 550–500 BCE: **Monoikos named by Hecataeus** — The Greek geographer Hecataeus of Miletus refers to Monoikos as a Ligurian town, the earliest known mention of the site that would become Monaco; later the Phocaeans of Massalia developed it as a port. [gouv-ancient-port, globalsecurity-early] - c. 300 BCE: **The harbour at its height** — The port of Monoikos, associated with the cult of Hercules, flourished as part of Mediterranean trade, as shown by coins and goods recovered from the harbour. [gouv-ancient-port] - from 137 BCE: **Portus Herculis Monoeci under Rome** — After Rome's conquest of the region the harbour became Portus Herculis Monoeci, a refuge on the route between Italy, Gaul and Hispania used by Roman expeditions. [gouv-ancient-port] - c. 50 BCE: **Caesar uses the port** — Julius Caesar is recorded as having used the harbour of Monoeci around 50 BCE, a measure of its importance as a Roman anchorage on the Ligurian coast. [gouv-ancient-port] Figures: - Hecataeus of Miletus (c. 550 – c. 476 BCE) — Greek geographer. An early Greek geographer whose description of 'Monoikos, a Ligurian town' is the oldest surviving written reference to the site of Monaco, fixing its existence in the historical record before 500 BCE. - Hercules (Monoikos) — Tutelary deity of the harbour. The harbour beneath the Rock was sacred to Hercules in both Greek and Roman belief; the Roman name Portus Herculis Monoeci preserved the cult, and the hero remained the place's mythic patron throughout antiquity. ## The Genoese Fortress and the Coming of the Grimaldi — 1215 – 1419 Genoa fortified the Rock in 1215; in 1297 François Grimaldi took it by a famous ruse, founding a dynasty that has reigned ever since. - 10 June 1215: **Genoa fortifies the Rock** — Genoese Ghibellines under Fulco del Cassello began building a fortress of four towers on the Rock of Monaco, offering land and tax exemptions to draw settlers to the new stronghold. [gouv-palace, globalsecurity-1215-1662, britannica-monaco] - 8 January 1297: **Grimaldi seizes the Rock** — François Grimaldi, called Malizia, took the fortress disguised as a Franciscan monk, beginning the Grimaldi presence in Monaco, an event commemorated by the armed monks of the princely coat of arms. [gouv-grimaldi-1297, gouv-palace, britannica-grimaldi, britannica-summary] - 1346: **Purchase of Menton** — Charles I Grimaldi, regarded as the founder of the principality, enlarged the Grimaldi domain by purchasing the lordship of Menton, which remained Monégasque until 1861. [britannica-monaco] - 1355: **Purchase of Roquebrune** — The Grimaldi added the lordship of Roquebrune to their possessions, completing the territory that, with Monaco and Menton, would define the principality for five centuries. [britannica-monaco] Figures: - François Grimaldi ('Malizia') (d. 1309) — Founder of the Grimaldi presence in Monaco. A Genoese Guelph leader whose seizure of the Rock of Monaco on 8 January 1297, disguised as a Franciscan monk, founded the Grimaldi dynasty. His cunning earned him the nickname Malizia and gave the princely arms their armed monks. - Charles I Grimaldi (c. 1267 – 1357) — First lord of Monaco. Considered the real founder of the principality, Charles I secured Grimaldi authority over the Rock, adopted the title of lord, and bought Menton and Roquebrune, giving Monaco the territory it would hold until 1861. ## From Lordship to Principality: Spanish, then French Protection — 1419 – 1793 The Grimaldi turned a contested lordship into a sovereign principality, sheltering first under Spain and then, by the Treaty of Péronne in 1641, under France. - 1612: **Honoré II takes the title of Prince** — Honoré II became the first Grimaldi to call himself Prince and Lord of Monaco, marking the principality's emergence as a sovereign state out of the medieval lordship. [globalsecurity-1215-1662, britannica-monaco] - 14 September 1641: **Treaty of Péronne** — Honoré II and Louis XIII signed the Treaty of Péronne, shifting Monaco from Spanish to French protection while recognising the principality's independence and the prince's sovereignty. [gouv-french-protection, globalsecurity-1215-1662, britannica-monaco] - from 1642: **French titles for the Grimaldi** — Under the Péronne settlement the prince of Monaco received French titles and estates, including the duchy of Valentinois, binding the dynasty to the French crown. [gouv-french-protection] - 17th century: **The fortress becomes a palace** — Honoré I and Honoré II employed leading architects to transform the Genoese fortress into a princely residence, creating one of the most remarkable palaces of the seventeenth century. [gouv-palace] Figures: - Honoré II (1597 – 1662) — First Prince of Monaco. Honoré II adopted the title of Prince in 1612 and in 1641 negotiated the Treaty of Péronne, expelling the Spanish garrison and placing Monaco under French protection while securing recognition of its sovereignty. - Louis XIII of France (1601 – 1643) — King of France, guarantor of Péronne. King of France whose government, guided by Cardinal Richelieu, drew Monaco out of the Spanish orbit. By the Treaty of Péronne of 1641 he recognised Monaco's sovereignty and extended French protection over the principality. ## Revolution, the Cession of 1861 and the Birth of Monte-Carlo — 1793 – 1911 Annexed by revolutionary France, then restored, Monaco lost Menton and Roquebrune in 1861 but won recognition of its sovereignty and rebuilt its fortunes on the casino of Monte-Carlo. - 1793: **Revolutionary France annexes Monaco** — Revolutionary France abolished the Grimaldi sovereignty and annexed the principality, expelling the dynasty and scattering the palace's art collections. [gouv-secession, gouv-palace] - 1848: **Menton and Roquebrune secede** — Amid the revolutions of 1848, Menton and Roquebrune declared themselves free towns, banished the prince and sought union with Sardinia, which then occupied them. [gouv-secession] - 2 February 1861: **Cession of Menton and Roquebrune** — By the Franco-Monégasque Treaty, Prince Charles III ceded Menton and Roquebrune to France for four million francs; France recognised Monaco's sovereignty over its remaining territory. [gouv-secession, globalsecurity-1815-present, britannica-monaco] - 2 April 1863: **Founding of the Société des Bains de Mer** — Charles III established the Société des Bains de Mer to develop a casino quarter, leasing the gambling monopoly to François Blanc, who had previously enriched the spa of Homburg. [sbm-history] - 1 June 1866: **Monte-Carlo named** — Prince Charles III decreed that the new casino district be called Monte-Carlo in his honour; its gambling revenues rebuilt Monaco's finances and let the principality abolish direct taxation in 1869. [sbm-history] Figures: - Charles III (1818 – 1889) — Prince of Monaco. The prince who ceded Menton and Roquebrune to France in 1861 in exchange for recognition of Monaco's sovereignty and four million francs, then refounded the principality's fortunes by creating the casino and the new district of Monte-Carlo, named for him in 1866. - François Blanc (1806 – 1877) — Casino entrepreneur. Master of the German spa casino at Homburg, Blanc took the lease of Monaco's gambling monopoly through the Société des Bains de Mer from 1863, turning Monte-Carlo into the most famous casino resort in Europe and the financial engine of the principality. ## Sovereignty Tied to France and the Making of the Modern Principality — 1911 – present Treaties of 1918 and 2002 bound Monaco's independence closely to France while guaranteeing its survival; under Rainier III and Princess Grace the principality modernised, joined the UN and adopted the euro. - 5 January 1911: **Monaco's first constitution** — Prince Albert I granted Monaco a constitution on 5 January 1911, ending absolute princely rule and beginning the principality's evolution into a constitutional state. [globalsecurity-1815-present, britannica-albert1] - 17 July 1918: **Franco-Monégasque Treaty of 1918** — Signed amid a succession crisis, the treaty aligned Monaco's policy with French interests and provided that the principality would fall under French protection should the Grimaldi line end; it was noted in the 1919 Treaty of Versailles. [monaco-coe-accession, britannica-monaco] - 19 April 1956: **Rainier III marries Grace Kelly** — Prince Rainier III married the American actress Grace Kelly, who became Princess Grace; their union brought the principality international glamour and helped drive its post-war revival. [britannica-rainier] - 1962: **The 1962 constitution** — Rainier III promulgated a new constitution that reduced the sovereign's powers, abolished capital punishment and granted women the right to vote. [britannica-rainier] - 28 May 1993: **Monaco joins the United Nations** — Monaco was admitted as the 183rd member state of the United Nations, an unambiguous international recognition of its full sovereignty. [un-members, monaco-coe-accession, globalsecurity-1815-present] - 24 October 2002: **Treaty of 2002 guarantees independence** — A new Franco-Monégasque treaty, with the revised constitution and succession law, ended the clause returning Monaco to France if the Grimaldi line failed, guaranteeing the principality's continued independence. [britannica-albert2, monaco-coe-accession, globalsecurity-1815-present] Figures: - Rainier III (1923 – 2005) — Sovereign Prince of Monaco. The 31st hereditary ruler, who reigned from 1949 to 2005, Rainier III modernised Monaco's economy beyond gambling, reclaimed land for the Fontvieille district and gave the principality the constitution of 1962. His marriage to Grace Kelly made Monaco internationally famous. - Princess Grace (Grace Kelly) (1929 – 1982) — Princess consort of Monaco. The American Academy Award-winning actress who married Rainier III in 1956 and became Princess Grace of Monaco. Her glamour transformed the principality's image; she died in a car accident in 1982. Machine-readable claims — every event above as an addressable claim ID (TL:MCO:event::) with its sources and a ready citation string: https://terralore.co/country/MCO/chronicle.claims.json ## References - [britannica-monaco] Monaco — Encyclopaedia Britannica · https://www.britannica.com/place/Monaco - [britannica-grimaldi] Grimaldi family — Encyclopaedia Britannica · https://www.britannica.com/topic/Grimaldi-family - [britannica-rainier] Rainier III, prince de Monaco — Encyclopaedia Britannica · https://www.britannica.com/biography/Rainier-III-prince-de-Monaco - [britannica-albert2] Albert II, prince of Monaco — Encyclopaedia Britannica · https://www.britannica.com/biography/Albert-II-prince-de-Monaco - [gouv-ancient-port] A port during Greek then Roman antiquity — Government of Monaco (gouv.mc) · https://en.gouv.mc/Government-Institutions/History-and-Heritage/Periods/An-ancient-history-Prehistory-and-Antiquity/A-port-during-Greek-then-Roman-antiquity - [gouv-palace] Monaco - Prince's Palace — Government of Monaco (gouv.mc) · https://www.gouv.mc/en/government-institutions/history-and-heritage/places/monaco-prince-s-palace - [gouv-grimaldi-1297] Occupation of the Rocher by François Grimaldi — Government of Monaco (gouv.mc) · https://en.gouv.mc/Government-Institutions/History-and-Heritage/Periods/The-beginnings-of-independence-Middle-Ages/Occupation-of-the-Rocher-by-Francois-Grimaldi - [gouv-french-protection] French protection (Treaty of Péronne, 1641) — Government of Monaco (gouv.mc) · https://en.gouv.mc/Government-Institutions/History-and-Heritage/Periods/From-the-Renaissance-to-the-Age-of-Enlightenment/French-protection - [gouv-secession] Secession of Menton and Roquebrune (Treaty of 1861) — Government of Monaco (gouv.mc) · https://en.gouv.mc/Government-Institutions/History-and-Heritage/Periods/Times-of-trouble-1793-1861/Secession-of-Menton-and-Roquebrune - [sbm-history] History of the company (Société des Bains de Mer) — Monte-Carlo Société des Bains de Mer · https://www.montecarlosbm-corporate.com/the-company/history/ - [monaco-coe-accession] The history of Monaco's accession — Permanent Representation of Monaco to the Council of Europe (gouv.mc) · https://monaco-coe.gouv.mc/en/monaco-and-the-council-of-europe/20-years-of-membership/the-history-of-monaco-s-accession - [un-members] United Nations Member States (Monaco admitted 28 May 1993) — United Nations · https://www.un.org/en/about-us/member-states - [britannica-summary] Monaco summary — Encyclopaedia Britannica · https://www.britannica.com/summary/Monaco - [britannica-albert1] Albert, prince of Monaco — Encyclopaedia Britannica · https://www.britannica.com/biography/Albert-prince-of-Monaco - [globalsecurity-1215-1662] Monaco: 1215 to 1662 — GlobalSecurity.org · https://www.globalsecurity.org/military/world/europe/mc-history-2.htm - [globalsecurity-1815-present] Monaco: 1815 to Present — GlobalSecurity.org · https://www.globalsecurity.org/military/world/europe/mc-history-4.htm - [globalsecurity-early] Monaco: Early History — GlobalSecurity.org · https://www.globalsecurity.org/military/world/europe/mc-history-1.htm - [wikipedia-history-monaco] History of Monaco — Wikipedia · https://en.wikipedia.org/wiki/History_of_Monaco Citation template: Terralore, "The Chronicle of Monaco: A rock above the sea held for seven centuries by one family, the longest-reigning dynasty in Europe.", terralore.co/country/MCO/chronicle, retrieved .