Gesta, Lavigne trans. p. 63. This happened in 1106 according to Monasticon Belge...

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Gesta, Lavigne trans. p. 63. This happened in 1106 according to Monasticon Belge, Vol.4, (Liège 1976) p. 39, citing J. L. Charles, La ville de Saint-Trond au Moyen Age. Des origines à la fin du XIV siècle, (Paris 1965) p.350. The event is often dated to 1102 on the internet, presumably based on older works such as M. J. Wolters, Notice historique sur l'ancien comté de Duras en Hesbaie, (Gent 1855)p.12.

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