El caballero más antiguo de este linaje, cuya existencia encontramos comprobada con testimonios históricos de reconocida garantía. Sirvió al rey Alfonso el Sabio. Pobló el lugar de Rojas y Poza de la Sal.
When copying data from this family tree, please include a reference to the origin: Henri Frebault, "Noblesse Européenne - European Nobility", database, Genealogy Online (https://www.genealogieonline.nl/noblesse-europeenne/I184622.php : accessed June 4, 2024), "Sancho López de Ulloa".
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