Rudolph, of Germanic origin, signifies 'famous wolf'. It was introduced to England via Normandy during the 11th century, following the Norman Conquest. The name gained popularity in medieval times and was often found among royalty, with Rudolph I being a Holy Roman Emperor from 1273 to 1291.
"Rudolph experienced steady popularity with 5 births each in 1933 and 1945, totaling 10 instances over these two years."