1.
A letter from Adelaide/Aleid of Holland (1259, January 20)
A letter from William, count of Holland (1248, September)
2.
3.
A letter from Adelaide/Aleid of Holland (1261, December 10)
A letter from Adelaide/Aleid of Holland (1259, February 22)
A letter from William of Holland (1217)
A letter from Florence, count of Holland (1272, September 8)
A letter from Adelaide/Aleid of Holland (1260, October 13)
A letter from William of Holland, king of the Romans (1250, May 19)
A letter from Adelaide/Aleid of Holland (1259, February 24)
A letter from Adelaide/Aleid of Holland (1276, September 5)