Ilūkste county
Ilūkste county (Latvian: Ilūkstes apriņķis, German: Kreis Illuxt, Russian: Иллукстский уезд) was a historic county of the Courland Governorate and of the Republic of Latvia. Its capital was Ilūkste (Illuxt), but the most populous settlement was Grīva (Griwa-Semgallen) immediately south of Daugavpils (Dünaburg).