Who is Beatrice?

The Baudelaire's Mother and Lemony Snicket's lost Love...

I am pretty sure she was the Baudelaire's mother.

As for Beatrice Baudelaire:
She was the mother of Violet,Klaus and Sunny.

As for Beatrice Snicket:
She was the daughter of Kit Snicket , adopted por the Baudelaire siblings.

Shes the baudaliers mum and She's is the adopted sibling of lemony snicket he also loved her but she married another man. Beatrice also estola the sugar Bowl from Esme squalor for the good of VFD

Beatrice #1 is Lemony Snickets lover who was killed por count Olaf and Beatrice #2 is the daughter of Lemony Snickets sister Kit