The House of Grimaldi has ruled which European principality since 1927?
House of Grimaldi called "albergo". In the political reform of 1528, the Grimaldi became one of the 28 "alberghi" of the Republic of Genoa, which included the Doria and Pallavicini families, and to which other families were formally invited to join. The House of Grimaldi provided several doges, cardinals, cabinet ministers, and military officers of historical note. By convention, sovereign European houses are reckoned in the male line. Therefore, since 1731, it has been determined genealogically that it was in fact the French noble that ruled as Princes of Monaco until 1949. However, one of the terms of James de Goyon de Matignon
Principality of Reuss-Greiz its claims were passed to the Junior Line. Heinrich XXIV, 6th Prince 1918–1927 (1878–1927) "To Reuss Junior Line on the death of Prince Heinrich XXIV" Principality of Reuss-Greiz The Principality of Reuss-Greiz (), called the Principality of the Reuss Elder Line () after 1848, was a sovereign state in modern Germany, ruled by members of the House of Reuss. The Counts Reuss of Greiz, Lower-Greiz and Upper-Greiz () were elevated to princely status in 1778 and thereafter bore the title of "Prince Reuss, Elder Line", or "Prince Reuss of Greiz". Similarly to the more numerous Reuss Junior Line, the male