His reign saw the domination of Castile over León and, by his alliance with Aragon, he drew those two spheres of Christian Iberia into close connection.
his rEiGn Saw tHe DomInAtiOn OF Castile oVeR LEón aNd, bY His alLiAnCE witH arAgoN, hE dRew those Two spheres Of chRiStIAn ibeRia inTo cLOse connEctION.