Evidence Reference
Douglas Richardson, Plantagenet Ancestry, 2nd ed. (2011)
Associated with Hugh VIII de Lusignan
Citation
Douglas Richardson, Plantagenet Ancestry: A Study In Colonial And Medieval Families, 2nd ed. (Salt Lake City: Douglas Richardson, 2011), Lusignan article. Provides the parent-child chain Hugh VIII → Hugh IX → Hugh X and identifies Guy and Aimery as Hugh VIII's sons.
Supporting claim
supported
Hugh VIII de Lusignan (c. 1120–1173), known as "le Vieux" (the Old), Lord of Lusignan, was captured on Crusade in 1163–1164 and died in captivity in Aleppo. He is the documented father of Hugh IX de Lusignan (who continued the Poitou line), Guy de Lusignan (later King of Jerusalem), and Aimery de Lusignan (later King of Jerusalem and Cyprus). His three sons founded, respectively, the mainland Poitou continuity that runs through Hugh X and Alix, and the Jerusalem/Cyprus royal continuity.