TIL one of the oldest families in Britain to still reside at their original seat are the Fulford family, who have lived at Great Fulford House since the reign of Richard I in 1196.

https://en.wikipedia.org/wiki/Great_Fulford

https://www.reddit.com/r/todayilearned/comments/156xlax/til_one_of_the_oldest_families_in_britain_to/