High Quality Content by WIKIPEDIA articles! Sir Leon Brittan, Baron Brittan of Spennithorne, QC, PC, DL (born 25 September 1939, North London) is a British barrister, politician and former Conservative Member of Parliament, as well as former member of the European Commission and former Home Secretary of the United Kingdom. His brother is Sir Samuel Brittan, an economics commentator at the Financial Times and financial journalist.