Background
Powell was born as William Hinson, the son of Thomas Hinson of Dubllin and his wife Anne Powell, daughter of Edward Powell of Fulham.
Powell was born as William Hinson, the son of Thomas Hinson of Dubllin and his wife Anne Powell, daughter of Edward Powell of Fulham.
He sat on the bench as a Justice of the Peace for Middlesex from 1650 to 1654 and Herefordshie from 1677 to his death and appointed High Sheriff of Herefordshire for 1657-1658. He was created baronet on 25 January 1661 under the recreated baronetcy of Pengethly. Powell married firstly, Lady Mary Brydges, widow of Sir John Brydges, 2nd Baronet of Wilton Castle, and daughter of John Pearle of Aconbury, in Herefordshire.
He had no male heir and the baronetcy became extinct on his death.
In 1660, Powell was elected Member of Parliament for Herefordshire in the Convention Parliament.