Raphael
His mother Màgia died in 1491 when Raphael was eight, followed on August 1, 1494 by his father, who had already remarried. Raphael was thus orphaned at eleven; his formal guardian became his only paternal uncle Bartolomeo, a priest, who subsequently engaged in litigation with his stepmother. He probably continued to live with his stepmother when not staying as an apprentice with a master. He had already shown talent, according to Vasari, who says that Raphael had been "a great help to his father". A self-portrait drawing from his teenage years shows his precocity. His father's workshop continued and, probably together with his stepmother, Raphael evidently played a part in managing it from a very early age. In Urbino, he came into contact with the works of Paolo Uccello, previously the court painter (d. 1475), and Luca Signorelli, who until 1498 was based in nearby Città di Castello.
Bertram Raphael
Raphael started at SRI International in 1964 as a consultant. After completing his Ph.D. at MIT, he was at the University of California, Berkeley for an academic year, and subsequently joined SRI full-time in April 1965. He was a long-time member of SRI's Artificial Intelligence Center, and was its director from 1970 to 1973. While at SRI, he helped invent the A* search algorithm and develop Shakey the robot, which was one of the first projects sponsored by DARPA; Raphael directed work on Shakey from 1970 to 1971. He also co-founded the Journal of Artificial Intelligence.