I

• IBN al-FADL /Abu l'fath Abdallah ibn al-Fadl ibn Abdallah al-Mutran al-Antaki/ (1000 k., ? – 1060 k., ?)
• IBN at-TAJJIB /Abu l'Farag Abdallah ibn at-Tajjib al Iraqi/ (990 k., ? – 1043, Bagdad)
• IGNÁC, LOYOLAI SZENT /Inigo/Ignacio de Onaz y Loyola/(1491, Azpeitia de Guipúzcoa – 1556, Roma)
• ILGEN, Karl David (1763, Sehna – 1834, Berlin)
• INCHOFER, Melchior (1585, Wien – 1648, Milano)
• ISAAC de STELLA /Isaac d'Étoille/ (1110 k., Anglia – 1169, Stella/Poitiers)
• ISOLANI, Isidoro (1480, Milano – 1528, Milano)

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