His second son, the third baronet, Sir Rushout Cullen, Member of Parliament for Cambridge bought the manor in the hamlet of Upton, Warwickshire along with woodland, cultivated fields and pasture. He replaced its manor house with a surviving National Trust property, Upton House (1688–1695) and the baronetcy became extinct on his death in 1730.
Cullen of East Sheen (1661)
- Sir Abraham Cullen, 1st Baronet (1624–1668)
- Sir John Cullen, 2nd Baronet (1652–1677)
- Sir Rushout Cullen, 3rd Baronet (1661–1730)