|Dedication||Our Lady, Saint Nicholas|
|Length||76 m (249 ft 4 in)|
|Width||25 m (82 ft 0 in)|
|Height||76 m (249 ft 4 in)|
|Floor area||1,155 m2 (12,430 sq ft)|
|Dome height (inner)||26 m (85 ft)|
Before the construction of the current church, a chapel dedicated to Mary and Saint Nicholas (patron saint of fishermen) stood on this site. The chapel was situated close to the river Aa, where bargees cast off vessels in the western harbour (Westerhaven).
The chapel became a parish church in the year 1247 and was named "Chapel of Our Lady at the river Aa" (Onze-Lieve-Vrouwe ter Aa-kerk). At this time, Groningen consisted of two centres, each surrounding a religious edifice, the Church of Our Lady at the river Aa being one of them. Fishermen and tradesmen inhabited the area around this chapel.
The chapel was transformed into a brick gothic church between 1425 and 1495. Both the interior and exterior have been altered many times over the course of history due to the iconoclasm during the Reformation, war damage (Siege of Groningen) and natural phenomena (lightning strike).
Images of the Siege of Groningen in 1672 show Der Aa-kerk without the top of the tower. After the war a new wooden tower top was built.
On 23 April 1710, the tower spontaneously collapsed killing two people. In 1711, a new tower was built.
The Bolsward organ build by Raphael Rodensteen in 1550 was originally for the Martinikerk (Bolsward) in Bolsward. In 1635, the organ was transferred to the Broerkerk in Groningen and in 1877 it was transferred back to the Martinikerk in Bolsward. In 1991, it was transferred again to Groningen and the Aa-kerk.
Schnitger organ (built in 1702 by Arp Schnitger)
Bolsward organ (built in 1550 by Anthonie Verbeeck)
|Dutch Rijksmonument 18423|
Media related to Der Aa-kerk at Wikimedia Commons