Ermengol or Armengol VI (1096 – 1154), called el de Castilla ("the one from Castile"), was the count of Urgell from 1102 until his death. He was the son and successor of Ermengol V and María Pérez, daughter of Count Pedro Ansúrez, Lord of Valladolid, who became the young Ermengol's tutor when he was orphaned in 1102.[1][2]