Colchester Royal Grammar School (CRGS) is a state-funded grammar school in Colchester, Essex. It was founded in 1128 and was later granted two royal charters - by Henry VIII in 1539 and by Elizabeth I in 1584.The school's main buildings and playing fields are located in the Lexden area of Colchester and there are around 950 pupils aged 11–18. Historically a boys' school, it has admitted girls to the sixth form since 1998 and specialises in science and languages. The school regularly tops national A-level league tables. Source: Wikipedia (en)