Cato Mertens-de Jaeger was born on June 23, 1873 in Rotterdam, Zuid-Holland, Netherlands. She was an actress, known for Jopie Gaat Trouwen (1912), De bannelingen (1911) and De Pantoffelhelden (1912). She was married to Jef Mertens. She died on August 28, 1933 in The Hague, Zuid-Holland.