I combed through the AP's and the Guide to Korvosa. Neither sources make any mention of Queen Domina's husband. Has anyone delved into the royal genealogy of Korvosa at all?
If there is no official ruling on the matter, who would have been a good candidate for consort to the Queen? Also, why does that individual play no role in politics? The simple answer would be to kill the poor guy off via DM fiat, but his existence opens up a number of interesting possibilities.
I thought Domina became queen after her husband died.
It is never mentioned if Queen Domina Arabasti had a husband, although she did move from Cheliax to Korvosa with her son as an adult, so she was probably already a widow then.