Lieutenant-General John Adlercron (died 31 July 1766) was Commander-in-Chief, India.

Military career Born into a Huguenot family who had taken refuge in Dublin at the end of the seventeenth century, Adlercron joined the British Army: in 1754 he went to India as commanding officer of the 39th (Dorsetshire) Regiment of Foot to protect the interests of the East India Company.Plassey 1757: Clive of India's Finest Hour by Peter Harringman, Page 36

He became Commander-in-Chief, India that year. On 16 May 1758 he was promoted to major-general, and on 18 December 1760 to lieutenant-general.Richard Cannon, Historical Record of the Thirty-Ninth, or the Dorsetshire Regiment of Foot (1853) p. 109-110

Adlercron died of an apoplexy in July 1766 at his home at Blackrock in Dublin.Notes & Queries, Oxford Journals

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