The Cippenham reference article from the English Wikipedia on 24-Apr-2004
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Cippenham

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Cippenham is a village in the unitary authority of Slough, in the south of England, near London. It is the only ancient village left in Slough.

King Henry III had a palace here. The spot is still marked on modern maps as "Cippenham Moat" and is very close to the M4 motorway.