The latter died unmarried at an early age and was succeeded by his younger brother, the fifth Baronet.
He represented Suffolk in the House of Commons for over forty years but is best remembered for his marriage to Lady Sarah Lennox.
His eldest son, the eighth Baronet, was High Sheriff of Suffolk in 1868, and Fellow of the Royal Society.
As of 2014 the title was held by the latter's second but eldest surviving son, the thirteenth Baronet, who succeeded in 1985.
The heir apparent is the present holder's son Henry Michael Napier Bunbury (b.