Proventus Avenicci

Proventus Avenicci is the Whiterun Jarl's Steward in The Elder Scrolls V: Skyrim. His daughter, Adrianne, owns Warmaiden's, a weapons and armor shop located in Whiterun.

Location and residence
He can usually be found standing next to the Jarl's throne, in the Jarl's war room behind the throne, or in his bedroom in the back rooms of Dragonsreach. You can collect your bounty from him for doing Bounty Quests

General
Aside from asking for information about Whiterun, the Dragonborn can fulfill bounties for Proventus by killing Giants and Bandit leaders outside of the city.

Property
Breezehome, a house in Whiterun, can be purchased from Proventus for 5000. All the furnishings needed to decorate the home are also sold by him.

Civil War
If the Dragonborn sided with the Stormcloaks during the Civil War, Proventus is fought during the Battle for Whiterun. After, he resides at the Blue Palace in Solitude with Balgruuf and Irileth.

Balgruuf's Sword
His daughter, Adrianne, asks the Dragonborn to deliver a sword to him for Jarl Balgruuf. After bringing him the sword, he tells the Dragonborn he will give it to Balgruuf when "the time is right."

Quests

 * Bounty Quests: kill the Bandit Leader at Halted Stream Camp.

Bugs
Провентус Авениччи
 * If you buy a house in Whiterun from Proventus then leave the castle afterwards, and return, Proventus may not be there.
 * To fix this, open the console, type "prid 0001A67D", hit enter, then type 'moveto player' Proventus should reappear.