* "Adamus exul" (The Exile of Adam; tragedy) – The Hague, 1601* "De republica emendanda" (To Improve the Dutch Republic; manuscript 1601) – pub.
* Adamus exul (The Exile of Adam; tragedy) — The Hague, 1601;* De republica emendanda (To Improve the Dutch Republic; manuscript 1601) — pub.