The bulk of the population of Nueva Vizcaya is made up of converts from two of the mountain Igorot tribes, the Isinay and the Gaddang or Gaddan. This valley was called Ituy or Isinay. There are but three or four thousand people in each of these tribes, the rest of the christianized population of this province being made up of Ilocano immigrants. (U. S. Census of Philippines, i, pp. 449, 471. 472.) [28] Constantius, second son of Constantine the Great; he reigned from 337 A. D. to 361, and adopted the Arian doctrine, of which he was a powerful supporter. [29] Pedro de Zúñiga was a native of Sevilla, and a son of Marqués de Villamanrique, viceroy of Mexico; he entered the Augustinian order at Sevilla, in 1604. He came to Manila in 1610, and spent several years as a missionary in Pampanga. Fired with zeal for the Japanese missions, he entered them in 1618, only to be sent back to Manila the next year with other priests banished from Japan; but, as recounted in our text, Zúñiga returned to that land to end his life as a martyr (August 19, 1622). He was beatified in 1867. See Pérez's Catálogo, p. 82. [30] Probably a reference to the ronins, men who had left their masters, under the old feudal system in Japan, and spent their time in low company and in idleness and excesses; see Griffis's Mikado's Empire, p. 278. [31] This brother's proper name was Mangorochi. The term donado, like the French donné (in each case meaning, literally, "one who is given") was applied to devout persons who voluntarily entered the service of the missions, giving themselves (often for life) to that cause, and sharing the lot of the missionaries. All the martyrs whose fate Aduarte describes were afterward beatified. [32] Diego de Rivera came to Manila from Córdoba, in 1615. He ministered in Bataán at first, but was lecturer in Santo Tomás from 1619 to 1623--in which year he lost his life as described in our text. [33] Francisco Galvez, a native of Utiel, made his profession in the Franciscan order in 1600, at the age of twenty-six. In 1609 he departed for the Philippines, where for some time he ministered to the Japanese Christians resident near Manila. He went to Japan in 1612, but was banished thence in 1614; after several vain efforts, he succeeded in returning to that country in 1618. He was arrested by the Japanese authorities, and after great sufferings in prison was burned alive at Yendo, December 4, 1623. (See Huerta's Estado, pp. 391, 392.) [34] Aparri is a port of entry on the northern coast of Luzón, at the mouth of the Rio Grande de Cagayán. It is the chief port of coast and ocean trade in that region, and the starting-point for inland river navigation.