Complex sentence: Matthias von Velen and his wife Margartha Anna, born von Galen, endowed the oldest church in Papenburg on 7 December 1680, dedicated to Anthony the Great, making him its patron saint.
Split into simpler sentences: Matthias von Velen and his wife Margartha Anna, born von Galen, endow the oldest church in Papenburg on 7 December 1680. It is dedicated to Anthony the Great, making him its patron saint.