Hello -
I was working on my ancestors today and from (see below) Richardson and Lewis John's wife is: "Cecily, daughter of Robert de Ufford, K.G., 1st Earl of Sufdfolk, Lord Ufford and his 1st wife Margery la Zouche, daughter of William la Zouche, Knt., 2nd Lord Zouche of Harringworth."
Per D. Richardson and Marilyn Lewis:
https://our-royal-titled-noble-and-commoner-ancestors.com/p520.htm#...
Douglas Richardson, Royal Ancestry, Vol. I, p. 172-173.
Douglas Richardson, Royal Ancestry, Vol. V, p. 359-360.
Can John's wife be corrected?
Thank you,
Mary