Innishowen, [211], [274]

Innislonagh Abbey, [296], [298], [317]

Innocent III., Pope, [59]

— IV., Pope, [62]

— VIII., Pope, [107]

Iona, [13], [15], [17], [21], [280]

Ireland, Duke of, [85]

Irishtown, origin of name, [73]

Irrelagh or Muckross, [300]

Isla, [273], [411]