and in 884 founded an outpost that would develop into the city of Burgos. It also appears he restored the episcopal see of Oca (ancient Auca).

His date and place of death are not agreed upon by the chronicles, though 885 is most probable as recorded in the Chronica Naierensis which states that Didacus comes...et interfectus est in Cornuta era DCCCCXXIII, secundo kalendas febroarii, that is, that he was killed in Cornudilla on 31 January, and most likely, in a battle against the Muslim troops