linguistic:paraphrasing, quality:correction, quality:corruption
Religion

Historians have assessed that Henry IV was a convinced Calvinist, and only changed his formal religious confession to achieve his political goals.

Henry IV was baptized as a Catholic on 5 January 1554. He was raised in the Reformed Tradition by his mother Jeanne III of Navarre. In 1572, after the massacre of French Calvinists, he was forced by Catherine de' Medici and the royal court to convert. In 1576, after escaping from Paris, he abjured Catholicism and returned to Calvinism. In 1593, to gain recognition as King of France, he converted again to Catholicism. Although a formal Catholic, he valued his Calvinist upbringing and was tolerant toward the Huguenots until his death in 1610, and issued the Edict of Nantes which granted them many concessions.