Actually they were Dutch for at elast 300 years before Belgium was formed. I suspect they were bi-lingual as their ruler was German.
The earliest Van Pelt I found in the diocese records was in 1701 which was a 100-years +/- before the HRE was dissolved and Germany was stripped of its great power, There is nothing in that VPrecord to suggest that family ever removed to America. There is no record of another Van Pelt family in the colonies before 1700.
Therfore I submit Anthonius Lanen is the father of every natural born colonial Van Pelt in America - having arrived in 1663 aboard a Privateer. He was accompanied by his children, brother and his children and a mutual friend of the family and his children.