Background
He was born at Ashton-under-Lyne, Lancashire, the son of John Hayes Petit, by Harriet Astley of Dukinfield Lodge, Lancashire.
He was born at Ashton-under-Lyne, Lancashire, the son of John Hayes Petit, by Harriet Astley of Dukinfield Lodge, Lancashire.
He was educated at Eton College, and contributed to the Etonian. He was elected to a scholarship at Trinity College, Cambridge, in 1822, graduated Bachelor of Arts in 1823 and Master of Arts
In 1826, and on 21 June 1850 was admitted ad eundem at Oxford. He took holy orders in 1824, but was never a parish priest. Petit was one of the founders of the British Archæological Institute at Cambridge in 1844.
A learned writer, he was best known as an artist.
He died at Lichfield, Staffordshire, on 2 December 1868, and was buried in Saint Michael"s churchyard, where there was a monument with a Latin inscription to his memory.
He was also Fellow of the Society of Antiquaries, an honorary member of the Institute of British Architects, and a governor of Christ"s Hospital.