House of Grimaldi in the context of "Agnatic"

Monaco, officially the Principality of Monaco, is a sovereign city-state and microstate in Western Europe. Situated on the French Riviera, it is a semi-enclave bordered by France to the north, east, and west, with the Mediterranean Sea to the south; the Italian region of Liguria is about 15 km (9.3 mi) east. With a population of 38,423 living in an area of 2.08 km (0.80 sq mi), Monaco is the second smallest sovereign state in the world, after Vatican City, as well as the most densely populated. It also has the world's shortest national coastline of any non-landlocked nation, at 3.83 km (2.38 mi). Fewer than 10,000 of its residents are Monégasque nationals. While the official language of Monaco is French, Italian and Monégasque are also widely spoken and understood.

Monaco is governed under a form of semi-constitutional monarchy, with Prince Albert II as head of state, who holds substantial political powers. The prime minister, who is the head of government, can be either a Monégasque or French citizen; the monarch consults with the Government of France before an appointment. Key members of the judiciary are detached French magistrates. The House of Grimaldi has ruled Monaco, with brief interruptions, since 1297. The state's sovereignty was officially recognised by the Franco-Monégasque Treaty of 1861, with Monaco becoming a full United Nations voting member in 1993. Despite Monaco's independence and separate foreign policy, its defence is the responsibility of France, notwithstanding two small military units.

The Franco-Monégasque Treaties of 1861, 1918, and 2002 are the basis of the relationship between the France and Monaco. The treaties define Monaco's independent status and sovereignty, as well as the rights of succession of the princely House of Grimaldi.

The sovereign prince of Monaco (French: prince de Monaco; Monégasque: príncipe de Mónaco) is the monarch and head of state of the Principality of Monaco. All reigning princes and princesses have taken the name of the House of Grimaldi. When Prince Rainier III died in 2005, he was Europe's longest reigning monarch. The Grimaldi family, which has ruled Monaco for eight centuries, is Europe's longest-ruling royal family.

The reigning prince is Albert II, who ascended in April 2005.

The Prince's Palace of Monaco (French: Palais princier de Monaco; Monégasque: Palaçi principescu) is the official residence of the Sovereign Prince of Monaco. Built in 1191 as a Genoese fortress, during its long and often dramatic history it has been bombarded and besieged by many foreign powers. Since the end of the 13th century, it has been the stronghold and home of the Grimaldi family who first captured it in 1297. The Grimaldi ruled the area first as feudal lords, and from the 17th century as sovereign princes, but their power was often derived from fragile agreements with their larger and stronger neighbours.

Thus while other European sovereigns were building luxurious, modern Renaissance and Baroque palaces, politics and common sense demanded that the palace of the Monegasque rulers be fortified. This unique requirement, at such a late stage in history, has made the palace at Monaco one of the most unusual in Europe. Indeed, when its fortifications were finally relaxed during the late 18th century, it was seized by the French and stripped of its treasures, and fell into decline, while the Grimaldi were exiled for over 20 years.

Grimaldo Canella (c. 1110 – c. 1184) was the youngest son of Otto Canella and Consul of Genoa in 1162, 1170, and 1184. Grimaldo is considered the progenitor and eponym of the House of Grimaldi.