Boxing has had many rematches & trilogies. But what about boxers fighting each other 4 times? 5 times? 6+ times?! Any good examples?

I am open to bad examples too. What made me think of this topic was the recent trilogy that nobody wanted to see, Tyson "Undefeated" Fury VS Derek "13 Losses" Chisora, with Fury leading this farcical rivalry 3-0. A special mention also to the TV documentary about the supposed rivalry between Mike Tyson & Frank Bruno. How was that a rivalry?? Tyson easily knocked out Bruno's fat ass both times!

But I would prefer good examples (eg. 4 fights, 2 wins each). Any spring to mind?