What does Alexander Magnus mean in Latin?

Alexander Magnus, a proper noun, means “Alexander the Great (the king of Macedonia)”.

What is the genitive of Alexander Magnus?

The genitive singular is Alexandrī Magnī. Alexander Magnus is second declension.

proper nounsecond declension

Alexander Magnus m sg (genitive Alexandrī Magnī)

What does Alexander Magnus mean in Latin?: Alexander Magnus, a proper noun, means “Alexander the Great (the king of Macedonia)”.
What is the genitive of Alexander Magnus?: The genitive singular is Alexandrī Magnī. Alexander Magnus is second declension.