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Irmengarde de Monchy was born 1125 in Mouchy-le-Châtel to Dreux III de Monchy (1080-) and Edith de Warenne (1075-aft1125) and died 1209 of unspecified causes. She married Guillaume I de Dampierre (1130-1174) 1154 JL . She married Dreux IV de Mello (c1137-1218) .

There is uncertainty about her first marriage. Maybe her first husband was married to Irmengarde de Toucy.


Offspring of Irmengarde de Monchy and Guillaume I de Dampierre (1130-1174)
Name Birth Death Joined with
Guy II de Dampierre (1155-1216) 1155 1216 Mathilde I de Bourbon (c1165-1218)
Helvise de Dampierre (1161-)
Odette de Dampierre (1170-1212)
Élisabeth de Dampierre (1160-1229) 1160 1229 Geoffroi I d'Apremont (1162-1222)

Offspring of Irmengarde de Monchy and Dreux IV de Mello (c1137-1218)
Name Birth Death Joined with
Dreux de Mello (-1249)
Agnès de Mello
Guillaume I de Mello (1163-1248) 1163 Saint-Bris-le-Vineux 1248 Elisabeth de Mont-Saint-Jean (c1196-c1243)


Footnotes (including sources)

‡ General