The Knowledge. London Brain Teaser No 48

A look this time at statues and burials, the latter not necessarily in London.

1. This veteran of the Battle of Waterloo is commemorated by a statue at Hyde Park Corner and was buried with military honours at Stratfield Saye near Reading. Name him.
2. Field Marshal Earl Roberts VC was C-in-C, Boer War, 1899-1900. His statue is on Horseguards Parade, but where is his horse buried?
3. The Earl of Chatham and hi sson have memorials in Guildhall and share the same tomb in Westminster Abbey but where was the Earl originally buried?
4. Oliver Cromwell’s statue stands outside the Houses of Parliament. Where is he buried? (This is a two part question!)

The solution