Complex sentence: Lax was born in Budapest, Hungary to a Jewish family; his parents Klara Kornfield and Henry Lax were both physicians, and his uncle, Albert Kornfeld/Korodi, was a mathematician and a friend of Leó Szilárd.
Split into simpler sentences: Lax was born in Budapest, Hungary to a Jewish family. His parents Klara Kornfield and Henry Lax were both physicians, and his uncle, Albert Kornfeld (also known as Albert Korodi), was a mathematician and a friend of Leó Szilárd.