David Cassriel

CARE
The parents of Röschen Cassriel are listed on her marriage certificate as David CASSRIEL and Roeschen NEUSTADT
The parents of Hannchen Fenster are listed on her marriage certificate as David CASSRIEL and Roeschen NEUSTADT
However, Röschen Cassriel marries the son of Hannchen Fenster.
Either this is an instance of someone marrying their aunt. Or the parents are different individuals, who happen to have the same names. Or?
We make the assumption they are different individuals.