Question: What was the school in Berkhamsted, Hertfordshire, England that Keith Martin Ball was educated originally called?

full_context: Document 1: Ashlyns School: Ashlyns School is a mixed secondary school and sixth form located in Berkhamsted, Hertfordshire, England. The school was established in 1935 as the final location of the Foundling Hospital, a children's charity founded in London in 1739. The Berkhamsted building converted into a school in 1955.
Document 2: Royal Grammar School, Guildford: The Royal Grammar School, Guildford (originally "The Free School"), commonly known as the RGS, is a selective independent day school for boys in Guildford, Surrey in England. The school dates its founding to the death of Robert Beckingham in 1509 who left provision in his will to 'make a free scole at the Towne of Guldford'; in 1512 a governing body was set up to form the school. The school moved to the present site in the upper High Street after the granting of a royal charter from King Edward VI in 1552. Around that time, its pupils were playing cricket and their activity was later documented as the earliest definite reference to the sport. The school's Old Building, constructed between 1557 and 1586, is the home of a rare example of a chained library. It was established on the death of John Parkhurst, Bishop of Norwich, in 1575. Although defined as a "free" school, the first statutes of governance, approved in 1608, saw the introduction of school fees, at the rate of 4 shillings per annum, along with the school's first admissions test. During the late 19th century the school ran into financial difficulty, which nearly resulted in the closure of the school. A number of rescue options were explored, including amalgamation with Archbishop Abbott's School. Funds were eventually raised, however, which allowed the school to remain open, although boarding was no longer offered.
Document 3: John Ball (bishop): John Martin Ball (1934 – 5 September 2016) was a British Anglican bishop. He was Assistant Bishop of Central Tanganyika in the Anglican Church of Tanzania, and retired to the Church of England.
Document 4: St Albans School, Hertfordshire: St Albans School is an independent school in the city of St Albans in Hertfordshire, in the South East of England. Entry before Sixth Form is for boys only, but the Sixth Form has been co-educational since 1991. Founded in 948 by Wulsin, St Albans School is not only the oldest school in Hertfordshire but also one of the oldest in the world. The school has been called "Britain's oldest public school" by the "Daily Mail". Nicholas Carlisle, in 1818, described the school as "of very ancient origin, and of great celebrity" and the "Good Schools Guide" describes St Albans as a "traditional public school, with a rich history".
Document 5: Söhnke M. Bartram: Söhnke Matthias Bartram is a Professor in the Department of Finance at Warwick Business School (WBS). Prior to joining the University of Warwick, he held faculty positions at Lancaster University and Maastricht University and worked for several years in quantitative investment management at State Street Global Advisors as Head of the London Advanced Research Center. He is a Charter Member of Risk Who’s Who and a member of an international think tank for policy advice to the German government.
Document 6: Catherine A. Roberts: Roberts graduated, magna cum laude, from Bowdoin College in 1987 with an A.B. in Mathematics & Art History and a teacher certification in math. She graduated from Northwestern University in 1992 with a Ph.D in Applied Mathematics & Engineering Sciences.
Document 7: Dean Incent's House: Dean Incent's House is a timber framed house in Berkhamsted, Hertfordshire, England. Reputed to be the birthplace of John Incent, it stands on Berkhamsted High Street and is a two-storey Grade II* listed building.
Document 8: The Oratory School: The Oratory School is a boys' independent Roman Catholic boarding and day school in the English county of Berkshire, some 6 mi north-west of the town of Reading. It is the only remaining all-boys Catholic boarding school in Britain. Founded in 1859 by Blessed John Henry Newman, The Oratory has historical ties to the Birmingham Oratory and is the only school founded by Cardinal Newman. Although a separate entity from the nearby Oratory Preparatory School, it shares a board of governors and a common history. Newman founded the school with the intention of providing boys with a Roman Catholic alternative to Eton College. For the academic year 2015/16, The Oratory charged day pupils up to £7,750 per term, making it the 25th most expensive HMC day school. It is a public school in the British sense of the term.
Document 9: Julian Gough (scientist): Gough was educated at The Perse School in Cambridge and the University of Bristol where he was awarded a joint honours degree in Mathematics and Physics in 1998. He went on to complete his PhD in the Laboratory of Molecular Biology (LMB) at the University of Cambridge supervised by Cyrus Chothia on genome analysis and protein structure as a postgraduate student of Sidney Sussex College, Cambridge, graduating in 2001.
Document 10: Martin Ball: Martin Ball is an English theatre and television actor. He was born and grew up in Royal Tunbridge Wells in Kent. He trained at Webber Douglas Academy of Dramatic Art, and graduated in 1992.
Document 11: Panayotis G. Kevrekidis: Panayotis G. Kevrekidis is a professor in the Department of Mathematics and Statistics at the University of Massachusetts Amherst. Kevrekidis earned his B.Sc. in physics in 1996 from the University of Athens. He obtained his M.S. in 1998 and Ph.D. in 2000 from Rutgers University, the latter under the joint supervision of Joel Lebowitz and Panos G. Georgopoulos. His thesis was entitled “Lattice Dynamics of Solitary Wave Excitations”. He then assumed a post-doctoral position split between the Program in Applied and Computational Mathematics of Princeton University (10/2000–02/2001) and the Theoretical Division and the Center for Nonlinear Studies of Los Alamos National Laboratory (03/2001–08/2001). From 09/2001, he joined the Department of Mathematics and Statistics of the University of Massachusetts Amherst as an assistant professor. He was awarded tenure and promotion to associate professor in 06/2005. As of 09/2010, he is a full professor at the same institution. He is presently the Stanislaw M. Ulam Scholar at the Center for Nonlinear Studies at Los Alamos National Laboratory.
Document 12: Martyn Amos: Martyn Amos is a Professor of Novel Computation in the School of Computing, Mathematics and Digital Technology at Manchester Metropolitan University, and an expert on natural computation and DNA computing. He was born in Hexham, Northumberland in 1971. He graduated with a degree in Computer Science from Coventry University in 1993, before earning a Ph.D. in DNA computing in 1997, from the University of Warwick. He then held a Leverhulme Trust Special Research Fellowship at the University of Liverpool, before taking up permanent academic appointments, first at the University of Liverpool (2000–2002) and then the University of Exeter (2002–2006).
Document 13: Berkhamsted School: Berkhamsted School is an independent school in Berkhamsted, Hertfordshire, England. The present school was formed in 1997 by the amalgamation of the original Berkhamsted Grammar School, founded in 1541 by John Incent, Dean of St Paul's Cathedral, Berkhamsted School for Girls, established in 1888, and Berkhamsted Preparatory School. The new merged school was initially called Berkhamsted Collegiate School, but reverted to Berkhamsted School in 2008. In 2011 Berkhamsted School merged with Heatherton House School, a girls' preparatory school in Amersham, to form the Berkhamsted Schools Group. The Group acquired Haresfoot School in Berkhamsted and its on site day nursery in 2012, which became Berkhamsted Pre-Preparatory School for children aged three to seven, and Berkhamsted Day Nursery.
Document 14: St Bernard's Catholic High School: St. Bernard's is a Catholic High School in Furness, and is situated on Rating Lane in Barrow-in-Furness, Cumbria, England. It was established in 1979, when the introduction of comprehensive education in the town resulted in a merger between the former St. Aloysius School (1953) and the Girls' Convent School (otherwise known as 'Our Lady's School', which had been operated by the nuns from Croslands Convent since 1929 ). It was officially established as a 'Specialist Science' School in 2006. The head teacher was Mr Eugene Tumelty who had been there for thirty years. He retired at the end of the 2010-2011 School Year. Mr Tumelty received the Benemerenti Medal for his religious teachings in the school. The headteacher is currently Mrs P Croft. The houses were named Campion, Fisher and Moore. Due to the expansion of the school there are now four houses.
Document 15: Keith Martin Ball: Ball was educated at Berkhamsted School and Trinity College, Cambridge where he studied the Cambridge Mathematical Tripos and was awarded a Bachelor of Arts degree in Mathematics in 1982 and a PhD in 1987 for research supervised by Béla Bollobás.
ground_truth: Berkhamsted Collegiate School