John III of Rietberg

John III of Rietberg (1566, Aurich – 23 January 1625, Rietberg) was a member of the Cirksena family. He founded the Catholic side line of the Cirksena in the Westphalian County of Rietberg, the so-called house of East Frisia. He was a son of Count Edzard II of East Frisia and Princess Katarina of Sweden, and a younger brother of Count Enno III of East Frisia. After Sabina Catherine died in childbirth giving birth to her eleventh child, in 1618, John ruled Rietberg alone until his death in 1625.

John III of Rietberg

John III of Rietberg (1566, Aurich – 23 January 1625, Rietberg) was a member of the Cirksena family. He founded the Catholic side line of the Cirksena in the Westphalian County of Rietberg, the so-called house of East Frisia. He was a son of Count Edzard II of East Frisia and Princess Katarina of Sweden, and a younger brother of Count Enno III of East Frisia. After Sabina Catherine died in childbirth giving birth to her eleventh child, in 1618, John ruled Rietberg alone until his death in 1625.