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In page Lviv:
"Two years later, John Casimir, in honor of the bravery of its residents, declared Lviv to be equal to two historic capitals of the Commonwealth, Kraków and Vilnius.[citation needed] In the same year, 1658, Pope Alexander VII declared the city to be Semper fidelis, in recognition of its key role in defending Europe and Roman Catholicism from the Ottoman Muslim invasion.[citation needed]
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