CDU on the ground - on 5 July in St Aldegundis in Büttgen The official farewell ceremony for Pastor Eßer, who is moving to Dormagen-Zons after 5 1/2 years in Kaarst, took place at the end of the day. The CDU Kaarst, through its chairman Christian Horn-Heinemann, thanked Mr Eßer for his lasting work in Kaarst and wished him all the best.