There's Jimmy Page, the greatest thief of American black music who ever walked the earth.
LOL- more like the most famous. A good portion of the Rolling Stones and the Beatles songs are taken from blues musicians too. Eric Clapton's career started from that stuff. Back then, there were no lawyers suing everyone for everything- if you wanted to use someone's music, you just did it, and everyone was cool about it. When the money started pouring in in the 70's, lawyers saw money and started suing over "rights" and "ownership" and anything else they could think off.
For example, in the early 80's, Zeppelin was sued by Willie Dixon for Whole Lotta Love. The lyrics were taken from his recording, and he wanted royalties. However, Dixon took that song from the 1950's club scene, where various people had been playing it for over a decade before he got a hold of it. Before that, a version of "You Need Love" was around from the 30's and passed around.
You'll also notice that all of the Zeppelin plagiarism cases were settled out of court---and it's been rumored they paid more than the asking price due to their respect for the musicians (actual sums were kept secret).
So, I know people like to knock the famous down a few pegs, but it's really undeserved in this case.