The Habsburg Kings of Hungary were titular rulers (claimants) of Serbia,[1] through the historical vassalage of the Serbian Despotate to the Kingdom of Hungary. The Serbian Despotate was finally conquered by the Ottoman Empire in 1459,[2] while "Little Rascia" (in the Kingdom of Hungary) in 1521–40. The Vexillum Serviae (in Latin, "flag of Serbia"; Hungarian: Rácország zászlója, Szervia zászlója) was one of the flags given to an honorary flag-bearer during the coronation of the king, since 1563. Central Serbia was at times occupied by the Habsburg Monarchy as the "Kingdom of Serbia". The flag included the Triballian boar.