John III of Rietberg

Count of Rietberg (1566–1625)

Parents

• Edzard II, Count of East Frisia
• Catherine Vasa of Sweden

Children

• Johann Cirksena
• Ernest Christopher

Siblings

• Anne of Ostfriesland
• Enno III, Count of East Frisia
• Christoph Gretsil
• Maria of Ostfriesland

Partners

• Sabina Catherine of East Frisia