Isabella of Urgell

Isabella of Urgel (died 1071) was the only daughter of Ermengol III of Urgell by his first wife Adelaide, whose origins are unknown.

Isabella married in 1065 to King Sancho Ramírez; by this marriage, Isabella was queen consort of Aragon. The couple divorced^[1] in 1070, and both remarried. The couple had one son:

• Peter I of Aragon and Navarre, he was his father's successor but had no surviving issue by his marriages to Agnes of Aquitaine and Bertha of Italy.

She married to William I of Cerdanya in 1071, as his second wife. Sancho Ramírez married Felicie de Roucy in 1076, this marriage bore another three sons, two of whom would become Peter's immediate (Alfonso) and eventual (Ramiro) successors.

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