Further, it mentions Bosnia (Bosnam) and Rascia (Rassa) as the two Serbian lands, while describing the southern Dalmatian Hum/Zahumlje, Travunia and Dioclea (most of today's Herzegovina, Montenegro, as well as parts of Croatia and Albania) as Croatian lands ("Red Croatia"), which is a description considered inconsistent with other historical works from the same period.
Throughout the Middle Ages, Herzegovina was made up of separate small duchies: Zahumlje (Hum), centered around the town of Blagaj and Travunia-Konavli, centered on the town of Trebinje all loyal to the Bosnian Ban and later King.