Frederick Trench (British Army officer)

General Sir Frederick William Trench KCH (1775 – 6 December 1859), was a British Army officer and Tory politician.

Trench was the son of Michael Frederick Trench, a barrister and amateur architect, of Heywood, only son of Reverend Frederick Trench, of Ballinakill, in Queen's County (now County Laois). His mother was Anne Helena, daughter and heiress of Patrick Stewart, second son of James Stewart, of Killymoon, County Tyrone. The Earls of Clancarty were members of another branch of the Trench family.

He was commissioned as an ensign and lieutenant in the 1st Foot Guards then promoted to lieutenant and captain on 12 November 1807. Trench served on the quartermaster's staff in Sicily in 1806-7 and was part of the disastrous 1809 Walcheren Expedition. He was sent to Cadiz in 1811 during the Peninsular War until on 1 August he was promoted to major and appointed assistant quartermaster-general in the Kent district. After his appoint as deputy quartermaster-general to the corps on 25 November 1813, he accompanied General Sir Thomas Graham to Holland in 1814 as a lieutenant-colonel. In 1814 he was placed on half-pay and became an aide-de-camp to the King on 27 May 1825. Under the Wellington ministry he was appointed Storekeeper of the Ordnance in 1829, a post he held until 1831. He was promoted to general in 1846.

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