Maffei was an Italian Jesuit and author who wrote on the life of Ignatius of Loyola, founder of the Society of Jesus, and also about the activities of the Society in the East. Giovanni Pietro Maffei was born at Bergamo about 1536; he was for a time professor at Genoa, became in 1564 secretary of the government at that place, and in 1565 joined the Jesuits, among whom he gained a great reputation. Brought to the notice of cardinal Henry, of Portugal, he was called to Lisbon. He died in Tivoli in 1603. Maffei wrote De vita et moribus Ignatii Loiolae (Romae 1585): — Historiarum Indicarum libri XVI (Florentiae, 1585