Aldgate

From the Wikipedia article :

Aldgate was the eastern-most gateway through London Wall leading from the City of London to Whitechapel and the East End of London. It gives its name to a ward of the City bounded by White Kennet Street in the north and Crutched Friars in the south, taking in Leadenhall and Fenchurch Streets, which remain principal thoroughfares through the City of London, each splitting from the short street named Aldgate that connects to Aldgate High Street. Sir John Cass's school, where a plaque records the former placement of London Wall, is sited on the north side of Aldgate.