Borland Turbo Pascal for CP/M and MS-DOS was developed by Anders Hejlsberg, who went on to develop All The Languages for Microsoft.

Perhaps more surprisingly, Turbo Modula 2 for CP/M (which was certainly surpassed by Topspeed Modula 2) was developed by Martin Odersky, who created Scala.

Throw in Robert Griesemer and his co-creation of Go, and the Wirth family tree is as influential in modern programming as it possibly could be.