Family: Henry William ( 2nd viscount Melbourne ) Lamb / Caroline Ponsonby

Paternal line Henry William ( 2nd viscount Melbourne ) Lamb
Peniston Lamb (maid. name 1st Viscount of Melb) 1745 - 1828  (83 years)	_	Elizabeth Milbanke 1751 - 1818  (67 years)

Paternal line Caroline Ponsonby
Fredrick (3rd Earl Bessbrough) Ponsonby 1758 - 1844  (86 years)	_	Henrietta Spencer 1761 - 1821  (60 years)
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William (2nd Earl of Bessborogh) Ponsonby 1704 - 1793  (89 years)	_	Caroline Cavendish 1719 - 1760  (40 years)
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Brabazon (1st Earl of Besborough and Viscount duncannon) Ponsonby 1685 - 1758  (73 years)	_	Sarah Margetson 1689 - 1733  (44 years)