The Witcher wiki now has a light themed alternative for the wiki skin. To check it out, go to Special:Preferences, then choose the "Appearance" tab and click on the radio button next to "Hydra".
Baldwin of Aedirn
Baldwin was a ruler of Aedirn. His son was Videmont, whose daughter Agnes eloped with and married Esteril Thyssen. They had a son and named him after his great-grandfather. Presumably during his reign, Dol Blathanna was seized.