The character I have as a back up in case my main bites it is a multiclass character. DM said I could make one as we are doing Tomb of Annihilation, So my back up started as a Warlock Hexblade patron Pact of the Blade, Background of Urban Bounty Hunter do to his activity as a bounty hunter his parents were murdered. This gave him pause for self thought he started following Hoar God of Revenge and Retribution, and he became a Paladin of Hoar and will be going Vengeance at 3 level.
When you need to take vengeance to an artform. Sounds like fun to play.