Clitheroe Royal Grammar School is a co-educational grammar school in the town of Clitheroe in Lancashire, England, formerly an all-boys school. It was founded in 1554 as "The Free Grammar School of King Philip and Queen Mary" "for the education, instruction and learning of boys and young men in grammar; to be and to continue for ever." After forty two years of sharing the school buildings with the boys, the newly-built Girls Grammar School opened in 1957, and merged with the Boys' Grammar School in 1985. CRGS celebrated its 450th anniversary in July 2004. At the same time, Stuart Holt retired as headteacher, having started in 1991. He was succeeded by Mrs Judith Child, who was headteacher until 2018. In September 2018, she was replaced by Mr James Keulemans, a former international rugby player. After becoming a Grant Maintained School in September 1991, Clitheroe Royal Grammar School became a Foundation School with a Foundation under the School Standards and Framework Act 1998. Most recently, on 1 January 2011, the school converted to Academy School Status under the Academies Act 2010. Clitheroe Royal Grammar School continues to be based on two sites, with the Sixth Form Centre occupying the historic buildings on York Street, and the Main School at the former Girls' Grammar School buildings on Chatburn Road. Intake The Main School intake each year is 150 children, who have each reached the required standard in the school's entrance examination, with places being offered preferentially to candidates living within the school's defined 'Catchment Area'. Pupils are then divided into five forms, named after the initials of the form tutor, and each assigned a house (C, R, G, S and T). This means the pupil population at Main School is about 750. Sixth Form entry is based on GCSE performance and takes in around 330 students per year. The matriculation requirements are five grade Bs at GCSE, with at least a Grade C in English Language and Mathematics, while some subjects also require specific grades in related GCSE subjects. Sixth form The school was originally based at St Mary's churchyard, and was moved to the York Street site in 1814, in rooms that are now used to teach Art and Foreign Languages. The school was extended in 1878, and again in 1914, to include what is now the Library. In 2009, the site was extended further to create more classrooms and a