King of Badajoz 1045-1060. The hstorical king was preoccupied by attempts by the Banu Abbad of Seville to conquer his kingdom, giving Ferdinand an opening.
Ferrando first extorted tribute from al-Muzaffar, then captured the frontier cities of Viseu and Lamego in 1057. In 1063 he advanced to Coimbra and conquered Muslim territory down to the Douro River.
Now Zadan Aben Huim, son of Huim Alboazem, the King thereof, was mightier than all the Kings who had reigned before him in Lamego, and he had peopled many places from the Douro even to the rivers Tavora and Vouga.
But maugre all their power, King Don Ferrando girt the city round about, and brought against it so many engines, and so many bastilles, that Zadan submitted, and opened his gates on the twenty-second of July, the day of St. Mary Magdalene, being twenty-five days after the capture of Viseu.
And Zadan became tributary to the King, and the King took with him many of the Moors, to be employed in building up the churches which had fallen to ruin since the land was lost.