He succeeded to the title Baron Folliott and to extensive Irish estates on the death in 1697 of his father Thomas Folliott of Ferney Hall, Onibury, Ludlow, Shropshire and Wardtown Castle, Ballymacaward, County Donegal.
He sat as member of parliament (MP) for Ballyshannon in the Irish House of Commons from 1695 to 1697.
He married Elizabeth Pudsey, heiress of Langley Hall, Sutton Coldfield in 1677 and built a substantial mansion, Four Oaks Hall, Sutton Coldfield, to a design by architect William Wilson.
His estates devolved upon a relative, Lieutenant General John Folliott, and upon his five sisters.
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