Question: The Bytham River was one of the great Pleistocene rivers of central and eastern England until it was destroyed by the extreme Anglian Glaciation around 450,000 years ago, it is named after which village and civil parish of around 300 houses in South Kesteven, Lincolnshire, England?
Sentence (from "Castle Bytham"): The population was measured at 768 in 317 households at the 2011 census.
Relevant evidence: No