Tamworth Castle is in Staffordshire, England

Who in the Family tree is this associated with?

23rd great grandfather and grandmother

http://www.tamworthcastle.co.uk/

• Sir Ralph "Lord of Tamworth" Cromwell, III, 1270
  and wife Joan De Grey, 1273

• Lady Aelfwyn of Mercia, 905
  (31st GGM of husband of daughter)