Definitions of Rupert:

• noun:   English leader (born in Germany) of the Royalist forces during the English Civil War (1619-1682)
• name:  A male given name (rare: 1 in 20000 males; popularity rank in the U.S.: #985)
• name:  A surname (rare: 1 in 33333 families; popularity rank in the U.S.: #4567)