Okay about Canderous/Mandalore
Canderous was a young boy in the Ordo clan when the wars began, now Mandelorians proof themselves through combat, and Canderous proofed to be better then all others. He destroyed entire fleets, thought on his feet and immediately changed plans on attacks when he could take an advantage. As he did in one battle which I don't remember the name off
Canderous eventually became a legend in the Mandelorian ranks and was even seen as the greatest second only to Mandalore the fierce leader of the Mandelorians. When Mandalore died at the end of the Mandelorian wars. The Mandelorians were left scattered and weakened, Canderous was the one that brought them back together under one Mandalore.
But before that Canderous lived on Taris a shitty planet where he got paid by the most important person on that planet. A crime lord by the name of Davik. When the Sith had conquered the planet Canderous could no longer leave. Thats when Revan found some guy that had potential. With the help of that guy and his friends Canderous managed to escape Taris. Canderous decided to stick with this guy because he was going to get into far more trouble and Canderous liked the prospect of it. The fighting the continueing of the war and all that crap.
Later on after many battles together and finding many things on many planets Canderous found out that this guy was Revan. And Immediately swore his allegiance to Revan. Even though the Mandelorians were beaten by Revan in the war. Canderous thought Revan deserved to win and honoured Revan. All Mandelorians did.
After the destruction of Malak, Revan left and Canderous was left alone on some foreign planet. Where he started rebuilding the Mandelorians. Which is not going to be easy to do unless you are damn powerful. The Mandelorians would never accept a political leader they want a powerful leader. The most powerful as leader. Canderous was that.