Thank you for asking. It looks as if your source is a family tree on Familysearch. I am afraid this is not a reliable source for a pre-1700 profile - please see https://www.wikitree.com/wiki/Help:Pre-1700_Profiles#Cite_reliable_sources - and should therefore not be used as a basis for creating a profile or adding a relationship. If you can find a reliable source for the relationship, it can be added.