Sir Justinian Isham, 4th Baronet

Sir Justinian Isham, 4th Baronet (11 August 1658 – 13 May 1730) was an English landowner and Tory politician, who sat in the House of Commons almost continuously from 1685 until his death in 1730. He was the longest serving member, later termed Father of the House, from 1729 to 1730.