History of Monaco Grimaldis, descended from Otto Canella and taking their name from his son Grimaldo, were an ancient and prominent Guelphic Genoese family. Members of this family, in the course of the civil strife in Genoa between the Guelphs and Ghibellines, took refuge in Monaco, accompanied by various other Guelphic families, most notably the Fieschis. Francesco Grimaldi seized the Rock of Monaco in 1297, starting the Grimaldi dynasty, under the sovereignty of the Republic of Genoa. The Grimaldis acquired Menton in 1346 and Roquebrune in 1355, enlarging their possessions. In 1338 Monegasque ships under the command of Carlo Grimaldi participated, along with
History of Poland during the Piast dynasty History of Poland during the Piast dynasty The period of rule by the Piast dynasty between the 10th and 14th centuries is the first major stage of the history of the Polish nation. The dynasty was founded by a series of dukes listed by the chronicler Gallus Anonymous in the early 12th century: Siemowit, Lestek and Siemomysł. It was Mieszko I, the son of Siemomysł, who is now considered the proper founder of the Polish state at about 960 AD. The ruling house then remained in power in the Polish lands until 1370. Mieszko converted to Christianity of the Western