Question: Who is the current reigning monarch whose dynastic lineage is associated with the historic Republic of Genoa in Italy?

full_context: Document 1: House of Savoy: The House of Savoy (Italian: "Casa Savoia" ), is a royal family that was established in 1003 in the historical Savoy region. Through gradual expansion, the family grew in power from ruling a small county in the Alps of northern Italy to absolute rule of the kingdom of Sicily in 1713. Through its junior branch, the House of Savoy-Carignano, it led the unification of Italy in 1861 and ruled the Kingdom of Italy from 1861 until 1946 and, briefly, the Kingdom of Spain in the 19th century. The Savoyard kings of Italy were Victor Emmanuel II, Umberto I, Victor Emmanuel III, and Umberto II. The last monarch ruled for a few weeks before being deposed following the Constitutional Referendum of 1946, after which the Italian Republic was proclaimed.
Document 2: Princess Stéphanie of Monaco: Princess Stéphanie of Monaco, Countess of Polignac (Stéphanie Marie Elisabeth Grimaldi; born 1 February 1965) is the youngest child of Rainier III, Prince of Monaco, and American actress princess Grace of Monaco, and the sister of Albert II, Prince of Monaco, and Caroline, Princess of Hanover. Currently 11th in the line of succession to the Monegasque throne, she has been a singer, swimwear designer and fashion model.
Document 3: House of Visconti: Visconti is the family name of two important Italian noble dynasties of the Middle Ages. There are two distinct Visconti families: the first one (chronologically) in the Republic of Pisa in the mid twelfth century who achieved prominence first in Pisa, then in Sardinia, where they became rulers of Gallura. The second family rose to power in Milan, where they ruled from 1277 to 1447, and where several collateral branches still exist. Pope Gregory X, who reigned from 1271 to 1276, was a member of the Visconti family of Milan. The renowned film director Luchino Visconti was a scion of this latter family's Visconti of Modrone branch.
Document 4: Principe di Savoia: Hotel Principe di Savoia, or simply referred to as The Principe, is a five-star hotel in Milan, Italy. The hotel has long become one of Milan's Landmarks. Founded by the name of "Principe e Savoia" in 1927, a time when Milan had already established its position as financial center of the country, it soon became a home for businessmen. With time, celebrities of all kinds chose The Principe for their Italian stays: Edward VIII, Erich Maria Remarque, Aristotle Onassis, Evita Peron, Maria Callas; and in recent years Madonna, David Beckham and George Clooney, among others.
Document 5: Music of Monaco: Monaco is a city and independent state located in the south of France, along the Mediterranean coast. The country has long been under the control of the Grimaldi family, who have encouraged musical development. Prince Rainier III introduced the Prince Rainier III Prize for Musical Composition to reward Monegasque musicians.
Document 6: Prince's Palace of Monaco: The Prince's Palace of Monaco 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.
Document 7: Grimaldi Group: The Grimaldi Group is a private shipping company owned by Guido Grimaldi and based in Naples, Italy. Grimaldi operates a large fleet of ro-ro vessels.
Document 8: Rainier III, Prince of Monaco: Rainier III (born Rainier Louis Henri Maxence Bertrand Grimaldi; 31 May 1923 – 6 April 2005) ruled the Principality of Monaco for almost 56 years, making him one of the longest ruling monarchs in European history.
Document 9: Albert II, Prince of Monaco: Albert II (Albert Alexandre Louis Pierre Grimaldi; born 14 March 1958) is the reigning monarch of the Principality of Monaco and head of the princely house of Grimaldi. He is the son of Prince Rainier III and the American actress Grace Kelly. Prince Albert's sisters are Caroline, Princess of Hanover, and Princess Stéphanie. In July 2011, Prince Albert married Charlene Wittstock.
Document 10: Hereditary Prince of Monaco: The Hereditary Prince(ss) of Monaco is the title given to the heir apparent or heir presumptive of the Monegasque throne, since its official creation on 15 May 1882. Traditionally, a male Hereditary Prince is also given the title Marquis of Baux. Like the Reigning Sovereign Prince and all other members of the Princely Family, the Hereditary Prince or Hereditary Princess is styled His or Her Serene Highness.
Document 11: House of Grimaldi: The House of Grimaldi is associated with the history of the Republic of Genoa, Italy and of the Principality of Monaco.
Document 12: Monarchy of Monaco: The Sovereign Prince or Princess of Monaco is the reigning monarch and head of state of the Principality of Monaco. All princes or princesses have officially taken the name of the House of Grimaldi, but have belonged to various other houses (Goyon de Matignon, Polignac) in male line. The present reigning prince is Albert II.
Document 13: Grimaldi Ministry: The Grimaldi Ministry was a Spanish government headed by Jerónimo Grimaldi which lasted between 9 October 1763 and 19 February 1777. Following Spain's distastrous performance in the Seven Years war, Grimaldi was tasked with pushing through reforms of the navy, army, public finances and colonial administration system which he did with some success. His government was packed with reforms known as Grillos, many of whom wanted to remodel the Spanish state to closer resemble that of Britain.
Document 14: Lamberto, Lord of Monaco: Lamberto Grimaldi (c. 1420 – March 1494) was Lord of Monaco from 16 March 1458. He was married to his cousin Claudine Grimaldi in 1465 to secure the Grimaldi inheritance of Monaco that by the small state's constitution could only pass to male heirs. Lamberto was of the branch of the Grimaldi family which had settled in Antibes while Claudia was of the more powerful Monaco branch.
Document 15: Caroline, Princess of Hanover: Caroline, Princess of Hanover (Caroline Louise Marguerite Grimaldi; born 23 January 1957), is the eldest child of Rainier III, Prince of Monaco, and American actress Grace Kelly. She is the elder sister of Prince Albert II and Princess Stéphanie. Until the births of her niece and nephew Princess Gabriella and Prince Jacques of Monaco in December 2014 she had been heir presumptive to the throne of Monaco since 2005, a position which she previously held from 1957 to 1958.
ground_truth: Albert II