1 Nephi 13:12

“And I looked and beheld a man among the Gentiles, who was separated from the seed of my brethren by the many waters; and I beheld the Spirit of God, that it came down and wrought upon the man; and he went forth upon the many waters, even unto the seed of my brethren, who were in the promised land.”

Columbus was a man who was NOT a gentile, but was living "among" them.  Christopher Columbus was related to the Sinclair’s by marriage, (Columbus married Felipa Moñiz de Perestrello, daughter of Bartolomeu Perestrello, a ship captain in the service of Prince Henry the Navigator, and Grandmaster of the Knights of Christ in Portugal...) but Christopher was himself of “royal blood”... by being of the House of Israel.