#([XVI]{2,5}|V|X)°(?: *siècle|…

#([XVI]{2,5}|V|X)°(?: *siècle| *s\.)(?!\.? *(?:-|et|ou)|\S)(?<!(?:-|et|ou)\s*([XVI]{2,5}|V|X)°(?: *siècle| *s\.))#

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