Church of St. Denis - Credit: Wikimedia Commons
The Church of St. Denis () is a parish church in Liège, Belgium. The fortified building was designed to be part of the city's defences. It was founded by Notker of Liège in 987 and first consecrated on 12 March 990.Theodose Bouille, Histoire de la ville et pays de Liege, vol. 1 (Liège, 1725), p. 75. The tower was added around 1100. Read more on Wikipedia
Source: en.wikipedia.org