Sir Thomas More's head could be exhumed 500 years after it was parboiled and put on a spike on London Bridge. St Dunstan's, an Anglican church in Canterbury, Kent, where the remains of Henry VIII's lord chancellor lie, has launched a bid to have them unearthed and placed in a shrine. More was beheaded at Tower Hill in 1535 after he refused to acknowledge the monarch as head of the church following Henry's break from Rome.