Sometimes the sovereign, when he went abroad, endowed the Mayor with considerable powers for the preservation of peace. This was the case in 1340 when Andrew Aubrey, the Mayor, acted on the authority of Edward III. A conflict had taken place in the streets of the city between the skinners and the fishmongers, which the Mayor attempted to stop. John Hansard, a fishmonger, brandishing a drawn sword, seized Aubrey by the throat and offered to strike him, while John le Brewere wounded one of the city serjeants. The delinquents were at once seized, carried to Guildhall, arraigned, found guilty, condemned to death, and beheaded in Cheap. When the King heard of this bold proceeding he immediately wrote to the Mayor, warmly approving of his conduct, congratulating him on his spirit, and adopting and ratifying the deed--'_Si vous en savons très bon gree et votre fait acceptoms et le ratifioms_.'[226] Sir William Walworth, the most famous of Mayors, died in 1385, after a full and strenuous life. He is said to have suppressed usury in the city, and we have seen how important a figure he was during Wat Tyler's insurrection. He was a prominent member of the Fishmongers' Company, and improved the old Church of St. Michael's, Crooked Lane (in which parish he lived), adding the Fishmongers' aisle.[227] The end of the fourteenth century was, perhaps, the most stirring period in the history of the London municipality. There was a deadly feud between the leaders, who were men of strong character, endued with courage to carry out their views to the extreme. These feuds were no matters of merely local interest, but the incidents were followed with the greatest attention by the Court and the whole country. The feuds arose from the increased power of the livery companies and the antagonism between the victualling and clothing trades. This division existed in most of the towns of the land, but the battle was fought out with deadly effect in the City of London. Walworth, a fishmonger, was the chief of the victualling party, but the two prominent leaders of the two parties were Nicholas Brembre and John of Northampton. Doubtless the victualling companies had obtained a preponderating influence, and it is recorded that at one time sixteen of the aldermen belonged to the Grocers' Company, of which Brembre was a member.[228] When John of Northampton, a draper, was elected Mayor in 1381, in succession to Walworth, he set himself to crush the victualling party. The Act of Edward II. having been evaded, another was passed in 1382 (6 Richard II. cap. 9), by which it was ordained that 'no victualler shall execute a judicial place in a city or town corporate.'[229] (_See_ p. 305.)