Thomas Fitzthomas (died c. 1276) was Mayor of London in the 13th century, closely associated with Simon De Montfort and the revolutionary regime at the time of the Second Barons' War.
He led a popular uprising against the established authorities of London, and was imprisoned by Henry III when he resumed power in 1265.
[1][2] Fitzthomas was born into the ruling elite of thirteenth century London, and was a member of the Drapers' Guild.
[2] In 1263, when De Monfort's forces advanced on London, Fitzthomas led a popular uprising in support of the Barons.
[3] Following the defeat of De Montfort and the barons at Evesham in 1265, Fitzthomas was imprisoned by the then Prince Edward.