Son of the late Captain Isaac Cotgrave, R.N. This officer served as midshipman under his father, in the Gannet ​sloop, on the Downs station. He obtained the rank of lieutenant in Jan. 1806; a pension for the loss of an eye, Oct. 8th, 1808; and a commission, appointing him to the command of the Pylades sloop, June 13th, 1815. Previous to this he had served under Captains the Hon. Anthony Maitland and Nagle Lock, in the Pique frigate and Jaseur sloop. He married, in Feb. 1824, Alicia Mary, eldest daughter of the late William Scott, of Camden Place, Bath, Esq.