ORDOÑO Vermúdez, illegitimate son of VERMUDO II King of León & his mistress --- (-after 18 Sep 1042). His paternity is recorded in a document of León Cathedral[915]. The Chronicon Regum Legionensium names "infante Ordoño" as the son of King Vermudo II by one of "two nobles sisters"[916]. Mayordomo of Alfonso V King of León 27 Mar 1024[917]. "…Hordonius proles Ueremudi…" (signing second among the lay subscribers) subscribed the charter dated 15 Nov 1028 under which "Ueremudus proles Adefonsi principis et Geluire regine" donated "villam meam…Cordario que fuit avorum et parentum meorum Menendi et dne Tote" to Santiago de Compostela[918]. His 18 Sep 1042 donation to the monastery of Santa María Virgen de León names his wife, and children Vermudo, Sancho, Fernando and Jimena, and granddaughter Marina, daughter of his deceased son Pelayo[919].
m FRONILDA Peláez, daughter of conde PELAYO Rodríguez & his wife condesa Gotina Vermúdez (-after 1058). The Chronicon Regum Legionensium names "Infanta Fronilde Peláez" as the wife of "Infante Ordoño"[920]. She is named in the 1058 document of Elvira Vermúdez, although this does not specify the relationship.
Ordoño Vermúdez & his wife had seven children