(TELEGRAPH) — France’s most senior Roman Catholic cleric has been accused of “flipping his lid” after the Cardinal warned that plans to legalise same-sex marriage would open the door to polygamy and incest.

Bertrand Delanoe, the Socialist mayor of Paris and one of France’s few openly gay politicians, expressed his shock at the comments, made at the weekend, by Cardinal Philippe Barbarin, the Archbishop of Lyon and Primate of the Gauls.

“It is very shocking and even surprising coming from him, because he is someone I consider a wise man,” he said. “I don’t know what came over him, he flipped his lid a little bit and what he said was downright ugly.”

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