Vem daterade Bertha?

Bertha (c. 780 – after 11 March 824) was the seventh child and third daughter of Charlemagne, King of the Franks, by his second wife, Hildegard.

Angilbert, Count of Ponthieu (c. 760 – 18 February 814) was a noble Frankish poet who was educated under Alcuin and served Charlemagne as a secretary, diplomat, and son-in-law. He is venerated as a pre-Congregation saint and is still honored on the day of his death, 18 February.