The former Diocese of Roskilde was a Latin Catholic diocese within the Catholic Church that was established in Denmark some time before 1022. The diocese was dissolved with the Reformation of Denmark
Roskilde Cathedral, the seat of the Bishop of Roskilde.
Absalon's Castle, was a fortification on the island of Slotsholmen in Copenhagen, located at the site of the later Copenhagen Castle and Christiansborg Palace. According to the chronicler Saxo Grammat
The ruins of Absalon's Castle at Christiansborg Palace in Copenhagen
Vilhelm Bissen's equestrian statue of Absalon on Højbro Plads, facing Christiansborg where his castle once stood