John Blaquiere, 1st Baron de Blaquiere, British soldier, diplomat and politician of French descent, is born on May 15, 1732. He serves as Chief Secretary for Ireland between 1772 and 1776. He is the fifth son of Jean de Blaquiere, a French merchant who had emigrated to England in 1685, and his wife Marie Elizabeth de Varennes.

Blaquiere at first serves in the Army, in the 18th Dragoons, later renumbered the 17th Dragoons, where he achieves the rank of Lieutenant Colonel. In 1771 he is appointed Secretary of Legation at the British Embassy in Paris, a post he holds until 1772. The latter year Simon Harcourt, 1st Earl Harcourt, the British Ambassador in Paris, is appointed Lord Lieutenant of Ireland, and Blaquiere joins him as Chief Secretary for Ireland. He is admitted to the Privy Council of Ireland the same year and made a Knight Companion of the Order of the Bath two years later.

Blaquiere is to remain Chief Secretary until December 6, 1776. He is elected to the Irish House of Commons for Old Leighlin in 1773, a seat he holds until 1783. After representing Enniskillen for a few months in 1783, he sits then for Carlingford from 1783 to 1790, for Charleville from 1790 to 1798 and for Newtownards from 1798 until the Act of Union comes into force in 1801. He is created a Baronet, of Ardkill in County Londonderry, in 1784, and is raised to the Peerage of Ireland as Baron de Blaquiere, of Ardkill in the County of Londonderry, in 1800, for his support for the Act of Union. Lord de Blaquiere also sits as a Member of the British House of Commons for Rye from 1801 to 1802 and for Downton from 1802 to 1806. He is elected a Fellow of the Royal Society in 1803.

Lord de Blaquiere marries Eleanor, daughter of Robert Dobson, in 1775. They have four sons, including Peter de Blaquière, and three daughters. Lord de Blaquiere dies at the age of 80 in Bray, County Wicklow, on August 27, 1812. He is succeeded in his titles by his eldest son, John. Lady de Blaquiere dies at Regent’s Park, Marylebone, London, in December 1833.