This is one of the books that Grotius worked on while at Loevestein Castle. In Bewys van den Waren Godsdienst Grotius discusses what it means to be Christian and why Christianity is the true religion that should be followed. The book opens with Grotius’ “Vermaninghe tot Vrede aen Alle Christenen”, in which he reflects on the virtues of Christians in comparison with other religions, and how this means that Christians should come together in peace. Grotius wrote the book in 1621, his last year in prison, and it was published a year later.
Hugo de Groot, Bewys van den waren godsdienst, book, 1622 [THYSPF 2977]