A female dragonborn paladin with the noble background is the ultimate switch: she can be the knight, the princess or the dragon, as circumstances require.
I’m imagining a scenario where, through a series of misunderstandings, she’s hired to rescue herself from herself.
Priest: “Sir Aldes of Mosley, the church has evidence to suggest that the Princess Miranda of Foxley has been kidnapped by Firefang the Ruthless. Will you rescue her on behalf of His Holiness?”
Sir Miranda Aldes, born in Foxley, honorarily knighted in Mosley as a Black Knight after winning a jousting tournament, who’s rebellious teenage nickname was Firefang: “So, about all that…”