Ulrich I of East Frisia, first count of East Frisia, was a son of the chieftain Enno Edzardisna of Norden and Greetsiel, and Gela of Manslagt.
Background
His father Enno had inherited Norden"s Attena, and had become headling of Norden, leaving Ulrich a large inheritance. Ulrich also received the inheritance of the respected family Cirksena through his mother Gela, daughter of Affo Beninga, headling of Pilsum and Manslagt, and Tiadeka Siartze of Berum.
Career
Heba (1457; † 1476), married count Eric I of Schaumburg-Pinneberg,
Gela (1458. † 1497),
Enno I (1460. † 1491),
Edzard I (1462),
Uko (1463.
† 1507),
Almut (1465.
† 1522/23).