As a youth he was educated at Ampleforth College in North Yorkshire, before moving to Australia when he was 18 years old.
He was the heir-general of George Plantagenet, the younger brother of Edward IV of England. If Edward IV had been illegitimate and the crown of England had descended by male-preference primogeniture before 1500, then George (and his heirs) would have been monarchs of England. Abney-Hastings died on 30 June 2012 in New South Wales.
Abney-Hastings was born in Sussex, England, to Captain Walter Strickland Lord and Barbara Abney-Hastings, 13th Countess of Loudoun, and later lived at Ashby-de-la-Zouch in Leicestershire.
In 2004, Britain"s Real Monarch, a documentary broadcast on Channel 4 in the United Kingdom repeated the claim that Abney-Hastings, as the senior descendant of George Plantagenet, 1st Duke of Clarence, is the rightful King of England. Also, Henry VI had placed an attainder on Edward after he was restored to the throne, and named George, Duke of Clarence, as heir to the throne after Henry VI and his legitimate issue.
Abney-Hastings was a committed Australian republican and expressed no interest in pursuing his claim to the throne, although he was amused by lieutenant He refrained from using his title publicly.
Until his death, the 14th Earl was one of the seven co-heirs to the Barony of Grey de Ruthyn.
The Lady Amanda Louise Abney-Hastings (born 1969)
The Lady Lisa Maree Abney-Hastings (1971-2012)
Simon Michael Abney-Hastings, 15th Earl of Loudoun (born 1974)
The Lady Rebecca Lee Abney-Hastings (born 1974)
The Honorary Marcus William Abney-Hastings (born 1981)
Abney-Hastings was a councillor of the Jerilderie Shire, elected in 2004 and re-elected in 2008.