He was succeeded by his son, the 2nd Baronet, who sat as Member of Parliament for Cumberland.[3] After his death the title passed to his elder son, the 3rd Baronet, disinherited by his father. He was succeeded by his younger brother, the 4th Baronet, an industrialist and politician, who never married. On his death in 1755 the baronetcy became extinct. He left his extensive estates to his cousin Sir William Lowther, 3rd Baronet of Marske. On the latter's death in 1756, they passed to Sir James Lowther, 5th Baronet, the future Earl of Lonsdale.[2]