Events in History Apr 13 Edict of Nantes grants political rights to French Huguenots Birthdays in History Apr 17 Giovanni Riccioli, Italian astronomer (Almagestum Novum), born in Ferrara, Italy (d. 1671) Apr 23 Maarten Tromp, Dutch admiral, born in Breille, Netherlands (d. 1653) 1597 On This Day in History 1599