Prince Christian Everhard of East Frisia (1 October 1665, Esens – 30 June 1708, Aurich) was a Prince of East Frisia from the House of Cirksena from the day he was born in 1665, but remained under guardianship until 1690.
Ernest Christopher, Count of Rietberg (1 April 1606 – 31 December 1640) was a member of the house of Cirksena and was Count of Rietberg from 1625 to 1640.
Count Johan II of East Frisia (29 September 1538, Aurich – 29 September 1591, Stickhausen Castle) was a member of the House of Cirksena and from 1561 until his death in 1591 co-regent of the county of East Frisia.
He founded the Catholic side line of the Cirksena in the Westphalian County of Rietberg, the so-called house of East Frisia.
Also in 1454, he supported Ulrich Cirksena against Tanne Kankena in Wittmund.