Iván (?-1120/25) of Hungary

http://fmg.ac/Projects/MedLands/HUNGARY.htm#_GÉZA_I_1074-1077,

GÉZA, son of BÉLA I King of Hungary & his wife [Ryksa] of Poland ([in Poland] [1044/45]-25 Apr 1077, bur Vac). ... Géza succeeded his cousin in 1074 as GÉZA I King of Hungary. ... m firstly ([1062]%29 [SOPHIE de Looz, daughter of EMMO Comte de Looz & his wife ---] (before [1044/46]-[1065]).

King Géza & his first wife had two children:

• 1. daughter ([1064]-). She and her son are shown in Europäische Stammtafeln[554], but the primary source on which this is based has not been identified. Assuming that her brother Kálmán was born in 1065, this daughter must have been the older child as their mother died in [1065], the same year in which their father remarried. The other possibility is that they were twins, which appear to have run in the family: King Kálmán's first cousin, Empress Piroska [Eirene] gave birth to at least one set of twins. m ---, from Hungary. One child:
  • a) IVAN (-beheaded [1120/25]). The primary source which confirms his parentage has not yet been identified. Pretender to the throne of Hungary 1120/25. The Chronica Ungarorum records that "Bors et Juan" claimed the throne, but that "Juan" was beheaded and "Bors" sent back to Greece, dated from the context to the lifetime of István II King of Hungary[555].