Background
Dietrich was the son of Dietrich VII, Count of Cleves and his second wife Margaret of Habsburg.
Dietrich was the son of Dietrich VII, Count of Cleves and his second wife Margaret of Habsburg.
He was Count of Cleves from 1310 through 1347. He succeeded in 1310 his half-brother Otto, Count of Cleves who had died without sons. Dietrich VIII married twice:
Margaret of Guelders († 1333), daughter of Reginald I of Guelders, in 1308.
They had two daughters:
Margaret († 1341), married in 1332 Adolph II of the Marck († 1347), had issue.
Elisabeth (1307–1382), married Gerard of Voorne and Otto II of Hesse.