Our Lady of Leliendaal Church was originally owned by the Norbertine St. Michael's Abbey in Antwerp. The architect was Lucas Faydherbe, he came from Mechelen, was the nephew of Lucas Franchoys the Younger and studied with Peter Paul Rubens in Antwerp. In 1662, the foundation stone was laid. Construction was delayed on multiple occasions, because the façade tilted dangerously forward. Therefore, in 1664, the façade was demolished and rebuilt. In 1670, the first Mass was said and in 1674 it was solemnly inaugurated.
In the early 19th century, during the Napoleanic wars, the church was seriously neglected and half of it was turned into a hospice for the poor of the city. The furnishings were sold and holes were made in the gables for people to be able to see out and over the church to help defend it against attack. A wall was placed in the church between the second and third windows for the establishment of an infirmary.
In 1834, it re-opened under the administration of the Jesuits. Through the cooperation of the nearby Minor Seminary and the Civil Hospices, it was restored and equipped with new furniture and the internal walls were removed. In 1900-1901, the Jesuits changed the floor plan and moved the choir to the gallery in the west of the church. Later in the 20th-century, a sacristy was constructed in the south west part of the church. Also, a grotto to Our Lady of Lourdes was built and new furniture was purchased.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.