The Oliver Gascoigne family originated at the point that Richard Oliver, originally of Castle Oliver

Castle Oliver

Castle Oliver is a Victorian mock castle in the south part of County Limerick, Ireland. Built for entertaining rather than for defense, it has a ballroom, drawing room, library, morning room, dining room and hall which feature hand-painted ceilings, decorated ornamental corbels, superbly executed...

, Limerick, Ireland, inherited the fortune of Sir Thomas Gascoigne of Parlington Hall

Parlington Hall

Parlington Hall was the seat of the Gascoigne family, Aberford near Leeds in the county of Yorkshire, in England. It was the birthplace of Isabella and Elizabeth Oliver Gascoigne, who inherited the Gascoigne family fortune in 1843...

, Yorkshire, in 1810. Sir Thomas made it a stipulation of his will that Richard add 'Gascoigne' to his name. Richard had married Sir Thomas's stepdaughter, Mary Turner, in 1804. Richard and Mary had two daughters, Isabella and Elizabeth, who inherited their parents' fortune in 1843. The sisters demolished their ancestral home in Ireland, and built a new Castle Oliver a few hundred yards to the north east. The castle still exists.