 After the 1755 earthquake the interior of the church was re-decorated in Baroque style, with gilded columns decorated in "talha dourada" (a typical Portuguese technique to decorate woodwork with gold leaves) in the choir and a beautiful altarpiece.The painting of the main altarpiece is a work by "Pedro Alexandrino".The side walls are decorated with 18th-century blue-and-white "azulejos" (ceramic tiles), depicting scenes from the life of Julian and Basilissa.