I have the same information, it appears, but there is a gap between the ancestor info and Jan b. 1628. I have been chasing down any lead to find who is jan's father but they have all been dead ends or fake stories. If you have time would answer this question.
Jan's Father examples Cornelius Jan William de La mark of Cleve, no kids Jan Waldyke of cleef Cornelius & Neeltje 1500's mother Princess of Hapsberg, and 7 children
I was reading another claim to be Jan's father-but that was the children including all had different surnames. I have spent 20 years tryhinf to find the answer.Vicky VC