Gisela, (in or before 781 – 808 or later) was a daughter of Charlemagne from his marriage to Hildegard.
She was baptized at the Basilica of Sant'Ambrogio in 781 by Thomas, Archbishop of Milan. She was educated at the castle in Aachen, with Alcuin who gave her the nickname "Delia".Alcuin: His Life and His Work, Charles Jacinth Bellairs Gaskoin According to Alcuin she took a particular interest in astronomy.Daily Life in the World of Charlemagne, Pierre Riche, page 205 Alcuin refers to "Delia" in some of his poetry.Anglo-Latin Literature, 600–899, Michael Lapidge, page 63Becoming a Poet in Anglo-Saxon England, Emily V. Thornbury, page 28
Like her sisters Bertha and Rotrude, Gisela never married.
Sources vary regarding her later life, some sources state 808 as a death date,Icons of the Middle Ages: Rulers, Writers, Rebels, and Saints, Volume 1, Lister M. Matheson, page 148 others state that in 814 she was sent to a convent by her brother Louis the Pious.The Franks, Lewis Sergeant, page 270 The sisters of Louis were sent from the capital to estates from their father's will or ones deemed appropriate.de Jong, Mayke. “EINHARD, THE ASTRONOMER AND CHARLEMAGNE'S DAUGHTERS,” n.d.
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