Haven't worked on this for a while, so had to drag out charts. There were 2 Anne Vassalls...John Vassall (1544-1625) married (1) Anne Hewes (with no children); (2) married Lady Anna (Ann/Anne) Russell (several children); (3) Judith Burrough.
If you mean William Vassall (1592-1655), (John's son); he married Anna King - who is thought to be the daughter of George King and Joanne Lorran, but there's a "break" in that line and I didn't follow it, since my lineage is from John Vassall (Jamestowne Society approved ancestor) and Lady Anna (or Anne) Russell (Vassall).
I'm presently working on translations for the Vassall/deVassal French line back to the 1100's. So, if your ancestor is William Vassall and John Vassall, we may be related.