The Dominican Monastery of Santo Tomás was built under the patronage of Hernando Núñez de Arnalte (treasurer of the Catholic Monarchs), his wife, María Dávila, the Inquisitor Fray Tomás de Torquemada and the Catholic Monarchs.
The work began in 1482 and was completed in 1493; however, at the Catholic Monarchs' initiative, a palace was built around the eastern cloister, together with the sepulchre of Prince Juan in the church after he had died in 1497.
As a see for the Inquisition, the University of Santo Tomás was opened in the 16th century and remained in operation until the 19th century. The monastery has been attacked many times throughout its history: sacked during the French invasion, abandoned after the sale of church lands ordered by Mendizábal and destroyed by fires in 1699 and 1936.
The church front is based on a segmental arch and two buttresses that run through the arch vertically. The subtlety is broken by the existence of a huge rose window and the no less imposing coat of arms of the Catholic Monarchs. The decoration is completed with 10 sculptures by Gil de Siloé.
The interior stands out thanks to the elegance of the main nave and the ramifications of the ribs that make up the vault above the transept, marking off the area dedicated to the sepulchre of Prince Juan. The complex has three cloisters.References:
Steinvikholm Castle is an island fortress built between 1525 to 1532 by Norway's last Catholic archbishop, Olav Engelbrektsson. Steinvikholm castle became the most powerful fortification by the time it was built, and it is the largest construction raised in the Norwegian Middle Ages.
The castle occupies about half of the land on the rocky island. The absence of a spring meant that fresh water had to be brought from the mainland. A wooden bridge served as the only way to the island other than boat. Although the castle design was common across Europe in 1525, its medieval design was becoming obsolete because of the improved siege firepower offered by gunpowder and cannons.
The castle was constructed after Olav Engelbrektsson returned from a meeting with the Pope in Rome, presumably in anticipation of impending military-religious conflict. As Archbishop Engelbrektsson's resistance to the encroachment of Danish rule escalated, first with Frederick I of Denmark and his successor Christian III of Denmark, Steinvikholm Castle and Nidarholm Abbey became the Catholic Church's military strongholds in Norway. In April 1537, the Danish-Norwegian Reformation succeeded in driving the archbishop from the castle into exile in Lier in the Netherlands (now in Belgium), where he died on 7 February 1538. At the castle the archbishop left behind St. Olav's shrine and other treasures from Nidaros Cathedral (Trondheim). The original coffin containing St. Olav's body remained at Steinvikholm until it was returned to Nidaros Cathedral in 1564. Since 1568 St. Olav's grave in Nidaros has been unknown.
From the 17th to 19th century, the island was used as a quarry and some of its masonry was sold and removed from the site. This activity was condoned by the Danish-Norwegian authorities as a way of eliminating a monument to the opposition of the Danish–Norwegian Union.
Steinvikholm fort is owned and operated today by The society for the Preservation of Norwegian Ancient Monuments. The island has been the site of the midnight opera which details the life and struggles of the archbishop. The opera is held in August annually. The opera is organized by Steinvikholm Musikkteater since the beginning in 1993.