Echohawk
Shirokinukatsukami fan
There were some Birthright comics released in the mid- to late-90s. IIRC, they were promotional/free. They used Baroness Roesone as a constant character.
I think there was only one Birthright comic released, The Serpent's Eye, as part of the 1996 TSR Limited Edition series. It does feature the Baroness of Roesone.
A few years ago, there was a limited series set in Eberron dealing with some Cyran survivor who had an eyepatch. I think she was the constable in Keith Baker's City of Towers. Can't recall her name, nor can I recall the publisher.
Like Birthright, it seems that Eberron has only ever had a single comic release, Eye of the Wolf, which was published by Devil's Due in August 2006. The eye-patch wearing constable is Captain Greykell. I didn't notice that she was a character from City of Towers, neat. That makes sense, since Keith Baker also wrote Eye of the Wolf.