Johann Friedrich Karl von Ostein was the Archbishop of Mainz, Elector of Mainz and Prince-Bishop of Worms.
Portrait by Heinrich Carl Brandt
Osteiner Hof on Schillerplatz in Mainz
Melchior Friedrich, Count of Schönborn-Buchheim, was a German politician who served as a Minister of State of the Electorate of Mainz. After his death, four of his sons became German Prince-Bishops.
Johann Friedrich Karl von Ostein
…Russia. One of his ancestors was Johann Heinrich von Ostein, Prince-Bishop of Basel during the Thirty Years' War. His maternal grandparents were Count Melchior Friedrich von Schönborn-Buchheim and Baroness Maria Anna Sophia Johanna von Boyneburg-Lengsfeld (a daughter of Johann Christian von Boyneburg). Among his maternal family were uncles…
Engraving of Melchior Friedrich von Schönborn-Buchheim
Schönborner Hof (Aschaffenburg), built 1673–1681
Göllersdorf Castle, Lower Austria (owned by the Schönborn family since 1712)