In his biography of the artist, Giorgio Vasari remarked that Antonello saw an oil painting by Jan Van Eyck (the Lomellini Tryptych) belonging to King Alfonso V of Aragon at Naples and consequently introduced oil painting to Italy. . Recent evidence indicates that an Antonello di Sicilia (di Siclia meaning from Sicily) was in contact with Van Eyck's most accomplished follower, Petrus Christus, in Milan in early 1456. It appears likely that Antonello di Sicilia was in fact Antonello da Messina as this would explain why Messina was one of the first Italians to master Eyckian oil painting, and Christus was the first Netherlandish painter to learn Italian linear perspective. Messina's paintings after that date show an observation of almost microscopic detail and of minute gradations of light on reflecting or light absorbent objects that is very close to the style of the Netherlandish masters, suggesting Messina had personal instruction from Christus. As well, his works' calmer expressions on peoples' faces and calmness in the works' overall composition also appears to be a Netherlandish influence.