Sharon Elizabeth Richards says about Audofleda
The name Blanchefleur first appeared around 1160 in "aristocratic" French literature. It's derived from Old French, meaning "white flower" or "fair flower". The name gained prominence in the 12th century with the story of "Blanchefleur et Eglantine," a poem about two lovers. The name is also tied to Arthurian legends and tales of chivalry, often symbolizing feminine beauty and virtue, as seen in "Blanchefleur et Galeran de Bretagne".
It would not have been prevalent in the 6th century in Latin/Gothic speaking Barbarian Kingdoms. There is no historical evidence that Audofledis was ever nicknamed "Blanchefleur" -