Background
Coningsby was the eldest son of Fitzwilliam Conningsby, of Hampton Court, Herefordshire.
Coningsby was the eldest son of Fitzwilliam Conningsby, of Hampton Court, Herefordshire.
He supported the Royalist side in the English Civil War. He matriculated at Lincoln College, Oxford on 23 February 1638, aged 15. He was of the Middle Temple in 1639.
He supported the King and was disabled from sitting in parliament on 22 January 1644.
Coningsby married Lettice Loftus, eldest daughter of Sir Arthur Loftus of Rathfarnham, Ireland. Their son Thomas became Earl Coningsby.
In November 1641, Coningsby was elected Member of Parliament for Herefordshire in the Long Parliament, replacing his father who had been expelled as a monopolist.