Son of tea merchant Collett Mawhood (d. 1757/8)1 and Rebecca Toriano (d. 1762). His sister Mary (1720-1790) married the famous naturalist Alexander Russell (1715-1768).
Mawhood became a Cornet in the Royal Regiment of Horse Guards in 1751, a Lieutenant in 1754 and a Captain in 1759, before retiring from active duty in November 1764.
Boswell mentions meeting a Captain Maud on December 28, 1762, at the Sheridan's. In the notes to Boswell's London Journal, Capt. Maud is identified as Captain Parravicini Mawhood.2
In 1774, Mawhood published An Appeal to the Public Relative to a Cause Lately Determined in the Court of Chancery ; in Four Letters to Mr. John Vernon of Southampton-Buildings, Solicitor. It is available as print on demand via AbeBooks.