Town names too: https://en.wikipedia.org/wiki/Montebello_della_Battaglia

Not in the Wikipedia page (but check the Italian version): it started as "Mons Belli" (Mount of the Battle) because of a battle fought by the Romans a few years before the Hannibal campaign. Then the original meaning was lost and it gained another "of battle" in the 1800s. Mount of the Battle of the Battle. Hopefully there won't be another one to add.

Lake Tahoe (Lake Big Lake). River Avon (River River). https://en.wikipedia.org/wiki/List_of_tautological_place_nam...