A major English city, royal center, and place of political spectacle in the Middle Ages.
London was the commercial and administrative center of England throughout the medieval period. Westminster developed as the primary governmental site from the eleventh century, while London proper was the center of trade and finance.
Its position on the Thames made London the principal English port and the center of the wool trade, cloth export, and financial activity that funded English warfare and administration.
The Tower of London, begun by William the Conqueror after 1066, served as fortress, prison, treasury, and royal residence. London Bridge — rebuilt in stone in the twelfth century — was the only Thames crossing in the medieval city.
London's civic power was substantial enough that its cooperation or resistance could determine the outcome of succession crises. Stephen of Blois's support from London in 1135 and Henry Bolingbroke's acceptance by the city in 1399 both illustrate how London's political position mattered at moments of dynastic contest.