Johan I of East Frisia
Governor of Limburg
(1506–1572)
Parents
Edzard I, Count of East Frisia
Children
Maximilian von Ostfriesland, Graf von Falkenburg
Siblings
Enno II, Count of East Frisia
Margaret of East-Frisia
Partners
Dorothea von Österreich, Frau zu Falkenburg, Durbuy und Dalem