Where was the Emperor born, under whom Rufrius Crispinus was commander of the Praetorian Guard ? 
Rufrius Crispinus:  Under the Roman Emperor Claudius he was the commander of the Praetorian Guard. Claudius:  He was born at Lugdunum in Gaul, the first (and until Trajan, the only) Roman Emperor to be born outside Italy.
Lugdunum in Gaul,