GUILLAUME [II] de Thiern (-after Nov 1083). The primary source which confirms Guillaume's parentage has not been identified, but it is probable that he was the grandson of Guy [II]. Baluze names the parents of "Guillaume II" as "Estienne", son of Guillaume [I], and "Blanche" but cites no primary source which provides the basis for his statements[1115]. Seigneur de Thiern. "Willelmus et uxor mea Adeleida" donated "in pago Limagniæ terram…Caverossum" by charter dated to [1049/1109] signed by "Stephani fratris eius"[1116]. "Willelmus Tier" witnessed the donation to Cluny of "Ermengardis" (his sister-in-law) dated Nov 1083, apparently indicating that he was still alive at that date (assuming the date is correct)[1117]. m ADELAIS de Chalon, daughter of THIBAUT Comte de Chalon & his wife Ermentrude --- (-1080 or after). "Willelmus et uxor mea Adeleida" donated "in pago Limagniæ terram…Caverossum" by charter dated to [1049/1109] signed by "Stephani fratris eius"[1118]. She is named with her son "W. of the Auvergne" in the 1080 charter which attests the election of a new bishop of Chalon, the chartercommenting that there was then no "territorial prince" at Chalon[1119]. Guillaume [II] & his wife had four children