[Aestus]

Started off as Squire Aestus Jenar of (Dustari), was promoted to
Soldier Aestus Jenar of (Dustari), who was then promoted to
Swordsman Aestus Jenar of (Dustari), who magically skipped a rank and became
Commander Aestus Jenar of (Dustari), a real cool guy who somehow managed to not be killed during the days of Dustari's destruction, and joined the Knights of Solomon as the Black Templar.

So just one character.