Name Johannes Grant | Role Engineer | |
Johannes Grant or Johannis Grandi was an engineer employed by the Byzantine Empire at the fall of Constantinople in 1453. Contemporary Greek and Latin accounts referred to him as being German, although Runciman has suggested he may actually have been a Scot named John Grant. His use of counter-tunnelling prevented the Turks from weakening or invading Constantinople from under the walls.
References
Johannes Grant Wikipedia(Text) CC BY-SA