Peace of Clement IX

Roman Catholicism

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June 24, 2026

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The "Peace of Clement IX" refers to an agreement in January 1669 that temporarily halted the persecution of Jansenists, a religious group whose doctrines emphasized predestination and deemphasized free will. Pope Clement IX, who reigned from 1667 to 1669, sought to appease King Louis XIV of France, who was concerned about religious dissent within his kingdom.1

However, Louis XIV's principles of Gallicanism, which advocated for limiting papal authority, complicated matters. Despite Clement IX's efforts, Louis XIV refused to aid Venice in its defense of Crete against the Ottoman Turks, leading to the fall of Candia and Crete in 1669. Clement IX died mourning the loss of Christian lives in Candia.1

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Clement IX
…in an agreement called the Peace of Clement IX (January 1669), which suspended persecution of the Jansenists. He was further troubled, however, by Louis’s principles of Gallicanism, a particularly French ecclesiastical doctrine advocating restriction of papal power. Furthermore, Louis refused Clement’s plea for aid to Crete, which then belonged to…
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…in an agreement called the Peace of Clement IX (January 1669), which suspended persecution of the Jansenists. He was further troubled, however, by Louis’s principles of Gallicanism, a particularly French ecclesiastical doctrine advocating restriction of papal power. Furthermore, Louis refused Clement’s plea for aid to Crete, which then belonged to…
Read More