Who married Anthony I, Count of Oldenburg?

Anthony I, Count of Oldenburg and Delmenhorst (1505 – 22 January 1573) was a member of the House of Oldenburg and was the Imperial Count of the Counties of Oldenburg and Delmenhorst within the Holy Roman Empire of German Nation. His parents were John V, Count of Oldenburg (1460–1525) and Anna of Anhalt-Zerbst.