The Port of Sandwich is no stranger to odd events in English history. It was here that the first captive elephant was landed in England by the emperor Claudius. Later another elephant was landed here, in 1255. The prize beast arrived at Sandwich quayside, delivered as a gift to the English monarch Henry III from the French king, and was then taken on foot to the king's menagerie in the Tower of London. The journey through Kent is reported to have proceeded without incident, except when a bull in a field by the roadside took umbrage at the great beast passing and attacked it. In one move, the animal was thrown by the elephant and killed outright. The Fisher Gate on the quay dates from 1384, and has been scheduled as an Ancient Monument. It is the only one of the original mediaeval town gates to survive. It is a Grade I listed building. The nearby Barbican dates from the 14th century and stands at the end of the bridge over the River Stour where it was used as a toll house. On 28 August 1457, after four years of uneasy peace in England the king presided over a wasting realm, with feudal barons lording it over the population of the north and the west. The French took advantage of the situation by sending a raiding party to Kent, burning much of Sandwich to the ground. A force of around 4,000 men from Honfleur, under the command of Pierre de Brézé, Marshal of France, came ashore to pillage the town, in the process murdering the mayor, John Drury. It thereafter became an established tradition, which survives to this day, that the Mayor of Sandwich wears a black robe in mourning for this ignoble deed. Sandwich later gained significantly from the skills brought to the town by many Flemish settlers, who were granted the right to settle by letters patent from Elizabeth I, dated 6 July 1561. Sandwich was the only town in England that housed more so-called "strangers" than native Englishmen in the 16th century. Historian Marcel Backhouse estimated there were at least 2,400 Flemish and 500 Walloon exiles living in Sandwich at the time. These settlers brought with them techniques of market gardening, and were responsible for growing the first English celery, which was already and still very popular in Flanders. Elizabeth I granted 25 Flemish families permission to live in Sandwich, and St Peter became the "Stranger's Church" in 1564 when the plague came to the town, in an effort to halt the spread of the disease.