Hoskyns was the son of Mr Serjeant Hoskyns of Hereford and his wife Benedicta Moyle, daughter of Robert Moyle of Buckwell, Kent. His father was a poet, lawyer and politician on whose death in 1638 Bennet inherited an estate at Moorhampton, near Hereford.
He was then elected Member of Parliament for Hereford in the Long Parliament of 1645, but was excluded in Pride"s Purge. He was however re-elected for Hereford to the First Protectorate Parliament of 1654, and for Herefordshire to the Second Protectorate Parliament of 1656 and Third Protectorate Parliament of 1659. At the end of the Civil War Hoskyns acquired (c1660) Harewood Park in Herefordshire from the Brown family. and was created a baronet on 18 December 1676.
He died in 1680 at the age of 71.
Their son John succeeded to the baronetcy and Harewood Park.
Short Parliament]
In April 1640, he was elected Member of Parliament for Wendover to the Short Parliament.
