John Albert I, Duke of Mecklenburg

duke of Mecklenburg-Güstrow and Mecklenburg-Schwerin (1525–1576)

Parents

• Albrecht VII, Duke of Mecklenburg
• Anna of Brandenburg

Children

• Sigismund Augustus of Mecklenburg-Schwerin
• Johann VII, Duke of Mecklenburg

Siblings

• Christopher, Duke of Mecklenburg
• Anna of Mecklenburg
• Georg von Mecklenburg
• Charles I
• Ulrich, Duke of Mecklenburg

Partners

• Anna Sophie of Prussia