[1] His eldest son William Legge was a Royalist army officer and close associate of Prince Rupert of the Rhine.

George's son William, the second Baron, notably served as Secretary of State for the Southern Department between 1710 and 1713 and in 1711 was created Viscount Lewisham, in the County of Kent, and Earl of Dartmouth, in the Peerage of Great Britain.

The American Ivy League school Dartmouth College in Hanover, New Hampshire, was named for the second Earl by Congregational minister Eleazar Wheelock.

On his death, the titles passed to his eldest son, the fourth Earl, who had briefly represented Milborne Port in Parliament before succeeding in the earldom.

The latter was succeeded by his eldest son, the seventh Earl, who married Lady Ruperta, daughter of the 1st Marquess of Lincolnshire.

Henry Bilson-Legge, fourth son of the first Earl, was a politician and served three times as Chancellor of the Exchequer.

Arthur Legge, fourth son of the third Earl, was a general in the British Army and Member of Parliament for Banbury.

Heneage Legge, sixth son of the fourth Earl, was Member of Parliament for St George's Hanover Square.