Alessandro De' Medici, Duke Of Florence was born on 22 July 1510. He was Italian national and known as Duke.
Cosimo III De' Medici, Grand Duke Of Tuscany was born on 14 August 1642. He was Italian national and known as Grand Duke.
Francesco I De' Medici, Grand Duke Of Tuscany was born on 25 March 1541. He was Italian national and known as Grand duke of Tuscany.
Ernst Johann Von Biron was born on 23 November 1690. He was Latvian national and known as Duke.
Mindaugas was born on 1203 AD. He was Lithuanian national and known as Grand Duke of Lithuania.
Bolesław I The Brave was born on 0967 AD. He was Polish national and known as Duke of Poland.
Bolesław III Wrymouth was born on 20 August 1086. He was Polish national and known as Duke of Poland.
Boleslaw I Of Poland was born on 0967 AD. He was Polish national and known as Duke of Poland.
Grand Duke Dmitri Pavlovich Of Russia was born on 18 September 1891. He was Russian national and known as Grand Duke of Russia.
Grand Duke Konstantin Nikolayevich Of Russia was born on 21 September 1827. He was Russian national and known as Grand Duke of Russia.
