Research Notes:

Henry III King of England noted that "Waltero de Lascy" had given "Roesiam neptem eius, filiam Hugonis de Lascy" as a hostage, dated 28 Mar 1217. According to Matthew of Paris, the wife of Alan of Galloway "iam defunctus" was the (unnamed) daughter of "Hugonem de Lasey". The Chronicle of Lanercost records in 1229 that "Alan the lord of Galloway…set out for Ireland and there married the daughter of Hugh de Lacy". John of Fordun´s Scotichronicon (Continuator) records that "Alanus de Galweia profectus in Hiberniam" married "filiam Hugonis de Lacy" in 1228. If her parentage and marriage is correctly stated in the two sources quoted, the chronology suggests that this daughter must have been born from Hugh´s first marriage, assuming that she was legitimate. She is named "Rose de Lacy" by Keith Stringer, who cites a charter of St Bees which indicates that she was still alive in 1237. ¹