High Quality Content by WIKIPEDIA articles! Baron Gretton, of Stapleford in the County of Leicester, is a title in the Peerage of the United Kingdom. It was created in 1944 for the brewer and Conservative politician John Gretton. He was head of the brewery firm of Bass, Ratcliff Gretton Ltd of Burton upon Trent and also represented Derbyshire South, Rutland and Burton in Parliament. His son, the second Baron, also represented Burton in the House of Commons as a Conservative. As of 2010 the title is held by the latter`s grandson, the fourth Baron, who succeeded his father in 1989. His mother, Jennifer Gretton, Lady Gretton, has been Lord Lieutenant of Leicestershire since 2003.