UPPER TOWN PLAN OF BOULOGNE1
| A- Castle | 1- Notre-Dame Cathedral |
| B- Calais Door | 2- Bishopry |
| C- Des Dunes Door | 3- Saint-Wulmer Abbaye |
| D- Des Degrés Door | 4- Town Hall |
| E- Gayole Door | 5- Seneschalsy |
| H- Notre-Dame Tower | 6- Godefroy-de-Bouillon Place |
| J- Gayette Tower | |
| K- Du Cuing (or françoise) Tower |
_ _ _ _ _ Outside contour (Upper Town Boulvard) |
| 1 | Pierre Heliot, ORIGINES DE LA HAUTE-VILLE DE BOULOGNE, Commission Départementale des Monuments historiques du Pas-de-Calais, Arras, 1947, page 34. |