Susanna

BEGO (-28 Oct 816) [m firstly ---. There is no proof of this possible first marriage of Bego. However, as noted below, if his wife Alpais was the daughter of Emperor Louis, there would have been a considerable age difference between her and Bego, which suggests the possibility of an earlier marriage.]

m [secondly] ([806]%29 ALPAIS, illegitimate daughter of [Emperor LOUIS I & his mistress ---] ([793/94]-23 Jul 852 or after, bur [Reims]). Flodoard refers to "Ludowicus Alpheidi filie sue uxori Begonis comitis"[116]. The Annales Hildesheimenses name "filiam imperatoris…Elpheid" as the wife of "Bicgo de amici regis" when recording the death of her husband[117]. Settipani discusses the debate about the paternity of Alpais, preferring the theory that Emperor Charles I was her father[118]. If Emperor Louis was her father, it is unlikely that she was born before [793/94], given his known birth date in 778. It would therefore be chronologically tight for her to have had [three] children by her husband before his death in 816.

[Sharon%E2%80%99s Note: Not really – it makes her 23yrs old when he dies. Charlemagne’s wife Hildegard had had 9 children by the time she died at 23 or 24yrs]  However, no indication has been found in primary sources of the ages of these children when their father died.  The question of her paternity is obviously not beyond doubt, but it is felt preferable to show her as the probable daughter of Emperor Louis in view of the clear statement in Flodoard.  If Alpais was the daughter of Emperor Louis, it is likely that she was not her husband's only wife in view of his estimated birth date.  After her husband died, she became abbess of Saint-Pierre-le-Bas at Reims in [817].  She was still there 29 May 852.  

Bego & his [second] wife had three children:

a) LIUTHARD . Flodoard names "ipsius Alpheidis vel filiorum eius Letardi et Ebrardi" when recording their mother's donation to the church of Reims[119].

b) EBERHARD . Flodoard names "ipsius Alpheidis vel filiorum eius Letardi et Ebrardi" when recording their mother's donation to the church of Reims[120].

c) SUSANNA ([805/10]-). The primary source which establishes that Susanna was the daughter of Bego has not yet been identified. "Vulfardus" donated property to Saint-Benoît-sur-Loire for the souls of "genitoris mei Vulfardi et genetrice mea Susannane necnon et germanorum fratrum meorum Adelardo, Vulgrino, Ymo et sorore mee Hildeburga vel nepote meo Vulgrino" by charter dated 2 Nov 889[121]. m ([825/30]) VULFHARD, son of ---.

http://fmg.ac/Projects/MedLands/FRANKISH%20NOBILITY.htm#_Toc169575355

Henry project: https://fasg.org/projects/henryproject/data/susan001.htm