1.
A letter from William of Holland (1217)
A letter from Joan of Constantinople, Countess of Flanders (1235, October)
A letter from Thomas of Savoy, count of Flanders (1242, September)
A letter from Thomas of Savoy, count of Flanders (1242, July)
A letter from Joan of Constantinople, Countess of Flanders (1221, January 4)
A letter from and Ferdinand of Portugal, Count of Flanders (1232, March)
A letter from Joan of Constantinople, Countess of Flanders (1242, June 2)
A letter from Joan of Constantinople, Countess of Flanders (1217, May)
A letter from Joan of Constantinople, Countess of Flanders (1219, May)
A letter from Joan of Constantinople, Countess of Flanders (1218/19, January)
