Henry IV, King of France, issued the Edict of Nantes on the 30th of April, 1598
After he came to power, he did not forget his Protestant former co-religionists. The Edict of Nantes, which he promulgated in 1598, though it recognized Catholicism as the official religion of the French state, gave Protestants certain important rights-religious rights, such as freedom of conscience and liberty to continue worship in places where they had done so before 1597; civic rights, such as eligibility to hold public offices; and political rights, such as permission to hold public assemblies and maintain 450 places with garrisons as strongholds. This edict, the first in Europe to permit two religions to coexist legally under one political government, was rigidly enforced by Henry until he was assassinated by the Catholic fanatic Ravaillac in 1610.*
The Edict was then rescinded by the Papist’s puppet king.
*Henry IV. In Who’s Who in Christian history (p. 312).