Edward Charles Grenfell, 1st Baron St Just (29 May 1870 – 26 November 1941),[1] was a British banker and politician.
His father, Henry Riversdale Grenfell, was Governor of the Bank of England between 1881 and 1883. William Grenfell, 1st Baron Desborough, was his first cousin.[1]
He was educated at Harrow School and Trinity College, Cambridge,[2] where he was secretary of the Pitt Club.[1][3] On graduation, he immediately entered a career in banking with a position in Brown Shipley, and subsequently with Smith Ellison, moving to J. S. Morgan & Co. in 1900. In 1904, Grenfell became a partner in the bank and in 1910, when J. P. Morgan restructured his London bank, it was renamed Morgan, Grenfell & Co. to reflect his position as senior partner.[1] He was a director of the Bank of England from 1905 to 1940.
Grenfell married Florence Emily Henderson in 1913.[1] In May 1922, he was elected a Unionist Member of Parliament for the City of London in a by-election and held the seat until 1935, when he was raised to the peerage as Baron St Just, of St Just in Penwith in the County of Cornwall.[1][4] This led to the 1935 City of London by-election, at which there was no contest. Lord St Just died on 26 November 1941, aged 71, and was succeeded in the barony by his only child Peter George Grenfell (1922–1984).[5]