Complex sentence: On 2 June, 1815, Petre married his first wife Frances Charlotte Bedingfeld (19 April 1796-29 January 1822 Thorndon Hall), daughter of Sir Richard Bedingfeld, 5th Baronet and his wife Charlotte Georgiana Jerningham.
Split into simpler sentences: On 2 June, 1815, Petre married his first wife Frances Charlotte Bedingfeld (1796-1822). She was a daughter of Sir Richard Bedingfeld, 5th Baronet and his wife Charlotte Georgiana Jerningham.