Is Esme Squalor Beatrice sister in a series of unfortunate events?

Esme Squalor is not Beatrice's sister in the "A Series of Unfortunate Events" series.

While Esme Squalor is one of the many unfortunate characters in the books, she is not related to Beatrice Baudelaire.

* Beatrice Baudelaire was the wife of Bertrand Baudelaire and mother of the Baudelaire orphans.

* Esme Squalor is a wealthy socialite and the wife of the villainous Count Olaf.

Esme and Beatrice have very different roles and personalities within the series.