Were the baudelaire's real people

Violet, Claus, and Sunny Baudelaire (based on the Beatrice letters and the series) end up raising Kit Snicket's daughter, Beatrice. They lived on an island. hey sailed away and Beatrice, the boat, sank. Beatrice, the girl, survives and is searching for Sunny, Claus, and Voilet. The threesome's whereabouts are unknown.