I realize that it has been some time since your original post. Hopefully at this point you've found what you were looking for. This is the information that I have.
Grace Gascoigne Born: 1532 Lasingcroft, Yorkshire, England, UK Died: 27 Mar 1574 Lasingcroft, Yorkshire, England, UK
married: c. 1560
Thomas Wentworth, Esq. Born: 1520 Yorkshire, England, UK Died: 14 Feb 1587 Nottinghamshire, England, UK
I'm connected through their daughter: Mary Wentworth Born: 1569 Scrooby, Nottinghamshire, England, UK Died: 17 April 1627 Plymouth Colony, Plymouth, Massachusetts, USA
Yes, the name sounds French. However, the migration of French names into England was so long before so there are probably many such times where the French name is becoming Anglicized. Try http://elsberry.org/ghtout/gp14222.htmhttp://elsberry.org/ghtout/gp14222.htm Also try Googling: Lasingcroft