He was executed in Wittmund on July 21 , 1651 .
Quickly after this he tried and executed the favourite and lover of his mother , the geheimrat Johann von Marenholz .
geheimrat Johann von Marenholz was executed in Wittmund on July 21 , 1651 .
Quickly after this he tried and executed the favourite and lover of his mother , the geheimrat Johann von Marenholz .