Guglielmo VI Aleramici del Monferrato, Marquess of Montferrat, was born circa 1173 to Bonifacio del Monferrato (1150-1207) and Helena del Bosco and died 17 September 1226 in Almyros of dysentery. He married Berta di Clavesana 9 August 1202 JL . Notable ancestors include Alfred the Great (849-899), Charlemagne (747-814). Ancestors are from the United Kingdom, France, Belgium, Germany, Italy.


Offspring of Guglielmo VI del Monferrato and Berta di Clavesana
Name Birth Death Joined with
Bonifacio II del Monferrato (1203-1253) July 1203 12 June 1253 Moncalvo Marguerite de Savoie (c1224-1254)

Beatrice del Monferrato (c1210-1274) 1210 1274 André Guigues VI du Viennois (1184-1237)

Alix del Monferrato (c1215-1232)

Namesakes of Guglielmo VI del Monferrato (c1173-1223)

 Birth placeDeath placeFatherMotherJoined with
Guglielmo del Monferrato (c1140-1177)AscalonGuglielmo V del Monferrato (1100-1190)Judith von Österreich (c1118-aft1168)Sibylla of Jerusalem (c1159-1190)
Guglielmo V del Monferrato (1100-1190)Ranieri de Montferrat (c1084-1135)Gisele de Bourgogne (1075-aft1133)Judith von Österreich (c1118-aft1168)
Guglielmo VI del Monferrato (c1173-1223)AlmyrosBonifacio del Monferrato (1150-1207)Helena del BoscoBerta di Clavesana
Guglielmo VII del Monferrato (c1240-1292)AlessandriaBonifacio II del Monferrato (1203-1253)Marguerite de Savoie (c1224-1254)Isabel de Clare (c1240-1271) + Beatriz of Castile (1254-aft1280)

Footnotes (including sources)

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