Fields of Mistria
Fields Of Mistria Caldarus
Fields of Mistria: Caldarus.
Special
Caldarus and Seridia are the two story-sensitive marriage candidates; you must advance the main quest and mines progress to unlock their normal interactions.
Confirmed
Caldarus is a romanceable character in 1.0, one of the two hidden candidates beyond the original 10, marriageable with no gender restriction.