Descended from a Winchester family, St. John inherited considerable estates in Hampshire from his father, who had married two heiresses. Unsuccessful for Winchester at a by-election in 1730, he was returned for it as a government supporter at the general election of 1734, voting with the Administration on the Spanish convention in 1739. Returned for the county in 1741, he was put down to Pelham in the Cockpit list of Oct. 1742, but thenceforth he seems to have gone into opposition, for his only recorded vote was against the Hanoverians in 1744, and by 1746 he was no longer classed among government supporters. Declining to stand for the county in 1747,
biography text
Volume
Parliamentarian
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