The dating clause of a charter dated 19 Jul 1166 names "Rodrigo Girón en Monzón". "Rodrigo Guterre, Petrus Guterri frater suus…" confirmed a charter dated 28 Oct 1169.
Mayordomo mayor of Alfonso VIII King of Castile 30 Jul 1173 to 28 Jul 1193. The dating clause of a charter dated 17 Feb 1176, under which “comitissa domna Stephania” donated property to Sobrado, records “...maiordomus regie Roderico Gutteriz...”. "…Rodericus Guterrez maiordomus curie regis Castelle…" subscribed, for Alfonso VIII King of Castile, the charter dated 21 Mar 1181 which records a peace treaty between King Alfonso VIII and Fernando II King of León. "Rodrigo y su mujer Ximena" donated half of the castle of Dueñas to the Order of Calatrava, leaving the other half to his children by "su primer mujer María de Guzman", by charter dated 22 Nov 1191. 1
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