James Gascoyne-Cecil, 4th Marquess of Salisbury son, David. James Gascoyne-Cecil, 4th Marquess of Salisbury James Edward Hubert Gascoyne-Cecil, 4th Marquess of Salisbury, (23 October 1861 – 4 April 1947), known as Viscount Cranborne from 1868 to 1903, was a British statesman. Born in London, Salisbury was the eldest son of Robert Gascoyne-Cecil, 3rd Marquess of Salisbury, who served as British Prime Minister, by his wife Georgina (née Alderson). The Right Reverend Lord William Cecil, Lord Cecil of Chelwood and Lord Quickswood were his younger brothers and Prime Minister Arthur Balfour his first cousin. He was educated at Eton and University College, Oxford, graduating BA in 1885.
Prime Minister of the United Kingdom the Tories won an outright majority. The Premiership is still largely a convention of the constitution; its legal authority is derived primarily from the fact that the Prime Minister is also First Lord of the Treasury. The connection of these two offices – one a convention, the other a legal office – began with the Hanoverian Succession in 1714. When George I succeeded to the British throne in 1714, his German ministers advised him to leave the office of Lord High Treasurer vacant because those who had held it in recent years had grown overly powerful, in effect, replacing the