
Books about Gwido:
Gwido hrabia Blezu: Tragedya (Polish Edition) by Adam Naruszewicz (1997)

Wiki information Gwido:
Lt. Col. Karol Gwido Langer was chief of the Polish General Staff's Cipher Bureau from at least mid-1931.
Guido Lorraine was a Polish-born actor, musician and singer, known primarily for his roles in war films. He was also sometimes known by the stage name Guy Borucki. Lorraine appeared in twenty-eight films during his career, as well as many theater...