St. Martin's Cathedral, Utrecht, or Dom Church, is a Gothic church dedicated to Saint Martin of Tours, which was the cathedral of the Diocese of Utrecht during the Middle Ages. It is the country's only pre-Reformation cathedral, but has been a Protestant church since 1580.
Altar piece in St. Martin's Cathedral, attacked in Reformation iconoclasm in the 16th century
View of St. Martin's Cathedral from the north, before the nave's collapse. Etching after Steven van Lamsweerde, 1660
Interior view by Hendrick van Vliet, 1674 (the year of the storm)
Willibrord was an Anglo-Saxon missionary and saint, known as the "Apostle to the Frisians" in the modern Netherlands. He became the first Bishop of Utrecht and died at Echternach, Luxembourg.
Statue in Carlow Cathedral, Ireland
Tomb of Willibrord in the Abbey of Echternach
St Willibrord's Church at Gravelines