This is a complicated profile ... we are still trying to solve things, but this can't be done in just one click . It probably was a man born named Johannes with the patronymic Willems(z) Provoost . So we are working on this (see posts) :)
But since it is showing up at the error data base I'll try and make it less confusing. It looks like he used a last name and patronymic, so he sometimes was referred to as Johannes Willems(z)(Wilhelmus, Guillaums Provost and sometimes just as Johannes Provost. But some sources say or have him as son Willem, Wilhelm , WIlhelmus sometimes named Johannes, so we're still trying to figure this out, which with all the repeated names in this family isn't the most easy thing.
Because these people were duplicated so often and to try and prevent this (new duplicates), we now often are adding more versions of the last names to the other last name fields and different versions of first names to the nick name field. So this not always is an error, but can be a way that seems to work to prevent duplicates.
