Fighters who had the most title shots

[SlimTrae]

Worst HW champ thread made me think of Axel Schulz. Not a bad fighter, but thought he was a one and done champ. After boxrec'ing to see what title fight I watched him lose to Moorer, ---I didn't realize it was vacant.

More surprising was seeing not only how many title shots he had...but lost.
And!!!!!. How many were vacant titles.
If Box rec is accurate, Axel Schulz:

... did win some vacant BDB German title.
Then..
A draw with Henry Akinwande for a vacant EBU European title.
Next fight he got a rematch for the vacant EBU...and lost to Henry.

Fought George Forman for the IBF and vacant WBU: Lost.
Few months later fought Frans Botha for the now vacant IBF: NC
Few months later fought Michael Moorer for the same vacant belt-IBF:Lost.

5 wins, three years later fights Wlad Klitschko for WBA (intercontinental) oh, and the vacant EBU again: Lost.


Who are some fighters that have had multiple title shots that compares to this dude?