He acceded to his title on the death of his father in 1651 and retained his lands in the north and east of Kilkenny while many others whose families had been involved in the Catholic Confederacy lost theirs.
His father had been heavily involved in the rebellion but Edmund received a pardon for all treasons and rebellions from King Charles II and was restored to his estates.
His first wife was Lady Dorothy Touchet, whom he married around 1630.
Subsequent marriages to Anne Trensham (1635) and Elizabeth Simeon (c. 1606-1674) in 1637 followed in quick succession.
This biography of a viscount or viscountess in the Peerage of Ireland is a stub.