The Black Viper - aka Esvele Rozsnar

The Black Viper was a notorious burglar, pickpocket, mugger, and assassin who died a century ago, after a long and nefarious career. 
Esvele Rosznar, a brash young noble, has recently adopted the Black Viper's persona to lead a secret life of crime. Like many other nobles, Esvel e gossips about the Black Viper's exploits to lend credence to the villain's mystique. The Rosznar family was convicted of slave trading, which is highly illegal in Waterdeep, and banished over a hundred years ago, but has since returned. The Rosznars' inability to regain the respect they feel they deserve rankles them. The slave trade has continued in Arnn and elsewhere, and it's not like other noble houses don't have skeletons in their closets. But just because of a little family squabble that went public, the Rosznar name has been said with a sneer for a century. As part of the family's constant effort to prove this conception wrong and win others' respect, Esvele has been brought up to be the most proper noble possible, partaking in lessons of etiquette, dance, and poise as befits someone of her station. In her younger days, Esvele openly rebelled, but that behavior led to locked doors at night and houseguards watching her every move during the day. So she taught herself how to pick locks, pluck keys from belts and pouches, and clamber up walls. and sneak past guards playing the perfect daughter by day while cutting loose at night. To hide her identity from those she met. she wore a hood and mask. exchanging her fine clothes for the kind of practical clothing her parents would never let her wear. 
One of the things Esvele has learned is to embrace the legend of the Black Viper. When she throws back her cloak to reveal the costume she has put together, most of them toss their purses and flee. If that doesn't work, she only needs to draw her dagger. Of course, some of the nobles she targets are made of sterner stuff, so Esvele has learned how to fight as well. She knows she's playing a dangerous game, but is satisfied that at least one member of the Rosznar family is earning the respect of Waterdeep's nobility.

Mental characteristics

Personal history

Trained to be the perfect noble from a young age, Esvele grew tired of the noble life and was resentful of her family due to their commitment to the slave trade. She was kept under strict surveillance, and learned how to sneak out on her own. She now takes on the mantle of the Black Viper in order to steal back an ounce of respect even if just for herself.