Alga

Alga lives in Honmund's House, just inside the eastern entrance to Bruma. She is an apprentice Speechcraft trainer. She trains during daylight hours. She is also one of the few respawning NPCs in Oblivion, making her a good option for slaying if you want entry into the Dark Brotherhood.

Apparently Alga and Honmund are 'live-in partners'. In her dialogue Alga reveals her parents lived in the same manner; under the same roof but not formally married, and refers to this as 'the old Nord way'. She seems to respect the church but sees no need to marry in the (presumably) Cyrodillic sense.