Since they were sterile, and of advanced age, they had not been blessed with the joy of a child. But Igniva and her husband had, according to the tradition, a vision of a light cone. When they consulted their vision with a priest, he said to them that it was a divine signal, announcing the conception to them of their longed son. The same priest proposed the name of CONO, in reference to the luminous cone of the dream.

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Sections d'un cône de ficelles par  trois plans de lumière