Bolli

Bolli is a Nord male who lives in Riften, and works at the Riften Fishery. He owns the fishery, and has a charitable nature, giving away much of his wealth.

He owns a house in Riften and lives with Nivenor, a Bosmer female. On the second floor of his house there's a note regarding his marriage.

He has a Mark of Dibella given to him by Haelga in exchange for an "intimate favor". You need to get it from him in order to complete Svana Far-Shield's task.

If your persuasion attempt fails, he will argue that he has only ever slept with his wife, Drifa. However, Drifa is Bersi Honey-Hand's wife. Bolli's wife's name is Nivenor. Possible bug?

Miscellaneous Objective
Speaking with Bolli regarding who buys his fish reveals that he has contacts all throughout Skyrim with one exception, Markarth. Bolli has just recieved word that Kleppr is now interested in purchasing goods from him as well can asks the Dragonborn to deliver a purchase agreement for him to Markarth.
 * Deliver the purchase agreement to Kleppr in Markarth