In 1528, D. Miguel da Silva, bishop-elect of Viseu, ordered the construction of the chapel of São Miguel-o-Anjo, which would simultaneously function as a lighthouse in order to assist navigation off the coast [REF].
Miguel da Silva, Bishop-Elect of Viseu, made this tower to govern the entrance for ships and gave and conceded purchased lands with his money to, respecting income, they light the tower with perpetual fires.