By marriage Cathelijne joined a family who were Calvinists. Nothing is known of Simon's early years or of his education although one assumes he was brought up in the Calvinist tradition.
Sa pamamagitan ng kasal Cathelijne sumali sa isang pamilya na mga Calvinists. Wala ay kilala ng Simon's maagang taon ng kanyang pang-edukasyon o kahit isa assumes siya ay nagdala sa kalvinista tradisyon.