From 1976, he became a full-time member of the House of Lords, taking the Liberal Party whip.
Later the same year on 17 August 1974 he married Stephanie Caroline, former widow of Surgeon-Commander Neil Lancaster Denham, RN, and only daughter of Donald Gaskell-Brown of Newton Ferrers, Devon.
[1] Arms: Gules, a lion rampant within a bordure engrailed argent, in dexter chief point a mullet or.
Motto: De bon vouloir servir le roy Creations: Baronetcy (GB) 11 Jan 1745/6, Baron (UK), 23 June 1801, Earl and Viscount (UK), 11 April 1806.
In 1983, Grey, along with four other men, was remanded on bail after being accused of jointly living off the earnings of prostitution.