What does Rudolph mean?
From the Germanic name Hrodwulf, combining 'hrod' ('fame') and 'wulf' ('wolf'), hence 'famous wolf'. The '-olph/-olf' ending preserves the wolf element.
What does Herman mean?
From Germanic 'heri' (army) and 'man' (man), giving 'man of the army, soldier'. The Latinized Arminius refers to the same Cheruscan war-leader.