Based on Wikipedia:
In 1909, a monument in the form of an obelisk of Dartmoor granite was erected by public subscription in Denmark Road, Exeter, to the memories of the Protestant Martyrs Agnes Prest (d.1557) and Thomas Benet (d.1531).
It was designed by Harry Hems, an English architectural and ecclesiastical sculptor. Thomas Benet from Cambridge,was an English Protestant martyr during the reign of Henry VIII. He was executedfor heresy by burning on 15 January 1531 at Livery Dole, Exeter. He is said to have died with "his hands an eyes to heaven, saying 'Lord, receive my spirit!'".
It also commemorates the martyrdom of Agnes Prest, who in 1557, was burnt for heresy at the stake in Southernhay. Two bronze sculpted relief panels on the base of the obelisk depict Benet banging on the door of the Cathedral and Prest burning at the stake, with the inscriptions:
"In grateful remembrance of Thomas Benet, M.A. who suffered at Livery Dole A.D. 1531 for denying the supremacy of the Pope and of Agnes Prest who suffered on Southernhay A.D. 1557 for refusing to accept the doctrine of Transubstantiation. Faithful unto death".
And:
"To the glory of God & in honour of his faithful witnesses who near this spot yielded their bodies to be burned for love to Christ and in vindication of the principles of the Protestant Reformation this monument was erected by public subscription AD 1909. They being dead yet speak".
According to Charles Worthy, in his History of the Suburbs of Exeter (1892), the iron ring which was placed around the victims' bodies and the chain which attached them to the stake were found in 1851 during rebuilding work on the almshouses.The last person to be executed at Livery Dole was Samuel Holmyard who was hanged at Magdalen Drop in 1818 for passing a forged City Bank one pound note.