Constance of Normandy, born into the illustrious lineage of William the Conqueror and Matilda of Flanders, was a prominent figure in the medieval aristocracy. As one of their nine children, she was raised in the heart of Normandy, where her father held the title of duke. Historical records, including those by William of Jumièges, identify her as the second daughter of this royal couple, although the exact order of her siblings remains uncertain.
In the year one thousand eighty-six, Constance's father orchestrated a strategic marriage to Alan Fergant, the duke of Brittany, as a means to secure peace along his western borders. By this time, Constance was approaching thirty years of age. Like her mother, she demonstrated remarkable administrative skills, which were essential in her role as duchess.
Despite her capabilities, Constance's reputation was mixed. William of Malmesbury described her as having a 'severe and conservative manner,' which led to her being viewed unfavorably by some. In contrast, the contemporary historian Orderic Vitalis portrayed her as a caring and considerate leader, well-regarded by her subjects.
Tragically, her life was cut short when she died on the thirteenth of August in the year one thousand ninety. Allegations arose that her husband may have conspired to poison her, casting a shadow over her legacy as a duchess.