Fruela (or Froila) Díaz (died 1119), known in contemporary sources as Froila Didaci or Didaz, was a nobleman in the Kingdom of León, the dominant figure in the centre of the realm during the late reign of Alfonso VI and the early reign of Urraca. A man of great private wealth who expanded his landholdings through numerous purchases, he was able to marry royalty and maintain good terms with his sovereigns of León as well as the rulers of Galicia and Portugal, whose territories lay immediately to the west of his area of influence. He also founded a hospital, a traveller's inn and a settlement that grew into a town. His lands raised some of the most valuable horses in Spain, he was buried in the royal pantheon of the kings of León, and his high rank—highest in the kingdom after the king and t