It mentions of two large, huge 12th Century states. Red Croatia (Dalmatia) and Croatia (Pannonia) and Serbia is making a little more than half of Croatia; while Red Croatia is the entire Adratic Balkan coastline. This is most probably a greatly exaggerated description of the two Croatian states before union under Tomislav - Dalmatia (Prince Borna) and Pannonia (Prince Ljudevit Posavski)