Deliver the sword to Proventus Avenicci

Walkthrough
When visiting Whiterun talk to the local blacksmith Adrianne Avenicci who owns the Warmaiden's. She mentions having worked on a greatsword, but had no opportunity to present it to Jarl Balgruuf the Greater.

Deliver the sword to Proventus Avenicci
She asks the Dragonborn to bring the sword to the Jarl's steward Proventus Avenicci, her father, for him to find a opportune moment to give it to the Jarl.

Liefere das Schwert zu Proventus Avenicci