John Byron (British Army officer)

Captain
John Byron
Captain John Byron
	Lord Byron's father, Captain John "Mad Jack" Byron
Born	1757
Died	2 August 1791 (aged 34); Valenciennes
Other names	Mad Jack
Alma mater	Westminster School
Spouses	; Amelia Osborne, Marchioness of Carmarthen; (m. 1779; died 1784) ; Catherine Gordon; (m. 1785)
Children	Augusta Leigh; George Gordon Byron, 6th Baron Byron
Parent(s)	Vice-Admiral The Hon. John Byron; Sophia Trevanion
Relatives	William Byron, 4th Baron Byron (paternal grandfather)
Military career
Allegiance	Kingdom of Great Britain
Service/branch	British Army
Rank	Captain

Captain John Byron (1757 – 2 August 1791) was a British Army officer and letter writer, best known as the father of the poet Lord Byron. In 1824, an obituary of his son gave him the nickname "Mad Jack Byron", and though there is no evidence for this in his own lifetime, it has since stuck – certainly he was called "Jack" by his family members and referred to himself as such.^[1]

^ Brand, Emily (2020). The Fall of the House of Byron. John Murray. p. 281.

[1] Brand, Emily (2020). The Fall of the House of Byron. John Murray. p. 281.

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