Vasja Pirc, after whom the system named (Pirc Defence).
Nicolas Rossolimo (1910– 1975) was an American-French-Russian-Greek chess Grandmaster. He was many times champion of Paris, France, and after relocating to the United States won the 1955 U.S. Open Championship. He earned many brilliancy prizes for his games, authored two chess books, and ran a popular chess studio in New York. https://www.youtube.com/watch?v=c4blP368ZZs