The toad in question is a well-known story of Berkeley Castle, although I had not heard it before. However, the thought of such a creature being connected to the reign of Henry VII is just too irresistible for the Ricardian in me. So here it is, as taken from Berkeley, A Town in the Marshes, by David Tandy.
“It is written, ‘out of which dungeon,1 in this place of a deepe broad well goinge steepely downe in the midst of the dungeon chamber in the said keepe, was (as tradition tells) drawne forth a Toad in the time of king Henry the seventh (1485-1509) of incredible bignes, which in deepe dry duft in the bottom thereof had doubtlesse lived there divers hundreds of years.’
- 1John Smyth of Nibley (1567-1641) The Berkeley Manuscripts: Lives of the Berkeleys. J. Mclean (ed). TBGAS 1883.
“Smyth, by talking to many elderly people in his time, had obtained this account. He said he saw a drawing in colour upon the wall of the great hall [of the castle] and on the side of the porch leading into the hall. But this drawing was, as he put it, ‘Washed out or outworne at that time’.
“As to the size of this toad, it was said to be in breadth over a foot neere to sixteen inches and in length, more. Having been fed over its life time on flesh and garbage from the butchers, it was said to fill a peck basket, some said a bushel basket. Smyth finished this account with the words ‘But this is all the trueth I knowe, or dare believe’.
“There is a carving of a toad in the church, high up on one of the columns, this toad is situated above two gossiping women. It’s suggested it is a medieval warning against gossip and false rumour.”
There is another such carving in the local church of St Mary’s, see below.
There is more about this monstrous toad here.