Birth:
14th November 1501 (Thursday), Oldenburg
Death:
24th September 1575 (Wednesday), Emden
Age at death:
73
Copyright status of works:
Public domain; can be used, copied and distributed by everybody
Info from Wikipedia:
Anna of Oldenburg was a Countess consort of East Frisia as the spouse of Count Enno II of East Frisia. She was the Regent of East Frisia in 1542–1561 as the guardian for her minor sons, Johan II and Edzard II. Her reign lasted until 1561 and was generally supported by the Estates.

Works authored by Anna