 In the parliament of Gloucester (1378) Thomas of Woodstock, the king's uncle, demanded Brembre's impeachment as Lord Mayor for an outrage by a citizen on one of his followers, but the matter was compromised.He now became for several years (at least from 1379 to 1386) one of the two collectors of customs for the port of London, with Geoffrey Chaucer for his comptroller, his accounts being still preserved.The party to which Brembre belonged had its strength among the greater companies, especially the grocers, then dominant, and the fishmongers, whose monopoly it upheld against the clamours of the populace.