Career
His name was Latinized as Christophorus Sandius, though his German name appears to have been Christoph Sand, and he was known as Christof Van den Sand during his later years in the Netherlands. Sandius Junior. moved to Amsterdam and earned his living as an editor, translator and publisher, he became well-recognized among European intellectuals. He remained on good terms with exiled Polish Socinians Andrzej Wiszowaty and Stanislaw Lubieniecki, while engaging in friendly polemics with them on the problem of the pre-existence of Christ which they denied, but Sandius, as an Arian, accepted.
Sandius Junior. also enjoyed close relationship with Benedictus Spinoza especially at the end of his life, when he became known as one of philosopher"s most faithful followers.