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Andrew Redmond Murray-Prior (1786-1860) was Andrew Murray-Prior’s younger son. He was appointed Accountant General of the Irish Post Office on 8 May 1809. On 17 March 1814, he married Catherine, daughter of Sir John Call of Cornwall and widow of Major-General Henry_MacKinnon who had been killed during one of the major battles of the Napoleonic Wars, the 1812 siege of Ciudad Rodrigo.
Andrew and Catherine had a son (John Lawrence M-P) and four daughters (Catherine, Fanny, Sophia and Emily). He allegedly had an affair with Lady Sarah Butler that resulted in an illegitimate child.

Other reference? Norfolk Cronicle, 15 February 1806. need subscription to see; Burke's Landed Gentry p.1076.