Republic of Venice Venice, at one with the sea, was being born. Agnello was succeeded by his son Giustiniano, who stole the remains of Saint Mark the Evangelist from Alexandria, took them to Venice, and made him the republic's patron saint. According to tradition, Saint Mark was the founder of the Patriarchate of Aquileia. With the patriarch's flight to Grado after the Lombard invasion, the patriarchate split into two: one on the mainland, under the control of the Lomabrds and later the Franks, and the other in Grado on the lagoons and the areas under Byzantine control; this would later become the Patriarchate
Senate Square (Saint Petersburg) square. On July 29, 2008, the square was renamed back to Senate Square. Senate Square (Saint Petersburg) Senate Square (), formerly known as Decembrists' Square (Площадь Декабристов) in 1925-2008, and Peter's Square (Петрова площадь), before 1925, is a city square in Saint Petersburg, Russia. It is situated on the left bank of the Bolshaya Neva, in front of Saint Isaac's Cathedral. In 1925 it was renamed "Decembrists Square" to commemorate the Decembrist Revolt, which took place there in 1825. The square is bounded by the Admiralty building to the east. On the west is the Senate and Synod Building (now