 He was a patron of poets, including, probably, the troubadour Marcabru.In 1111, Diego Gelmírez, Bishop of Compostela and the count of Traba, crowned and anointed Alfonso King of Galicia in the cathedral of Santiago de Compostela.He was a child, but his mother had (1109) succeeded to the united throne of León-Castile-Galicia and desired to assure her son's prospects and groom him for his eventual succession.