or his son was the ruler of Serbia during the uprisings (819–822) of Ljudevit Posavski against the Franks. According to the Royal Frankish Annals, in 822, Ljudevit went from his seat in Sisak to the Serbs who controlled a great part of Dalmatia ("ad Sorabos, quae natio magnam Dalmatiae partem obtinere dicitur") but according to John (Jr.) Fine, it was hard to find Serbs in this area since the Byzantine sources were limited to the southern coast, also it is possible that among other tribes exists tribe of group of small tribes of Serbs. The mentioning of "Dalmatia" in 822 and 833 as an old geographical term by the authors of Frankish Annals was Pars pro toto with a vague perception of what this geographical term actually referred to. In late 870s, the Theme of Dalmatia ("thema Dalmatias") was established, with the strategos seated at Dubrovnik (Ragusa, Ragusion). These small cities in the region (also Dyrrachium) did not stretch into the hinterlands, and had no military capacity, thus Basil I paid a tax of '72 gold coins' to the princes of Zahumlje and Travunia. {| class="toccolours" style="float: right; margin-left: 1em; margin-right: 2em; font-size: 85%; background:#c6dbf7; color:black; width:55em; max-width: 60%;" cellspacing="0" | style="text-align: left;" | "From the city of Decatera begins the domain of Terbounia and stretches along as far as Ragusa, and on the side of its mountain country it is neighbour to Serbia." "Travunia (Terbounia) and Konavli are united. Its inhabitants originate from the unbaptized Serbs, who lived there since the archont that fled from White Serbia to Emperor Heraclius until the time of Vlastimer archon of Serbia." "The archonts of Travunia have always been subject to the archont of Serbia" "Populated cities in Travunia and Konavli are: Travunia (η Τερβουνια), Vrm (το Ορμος), Risan (τα Ρισενα), Lukavete (το Λουκαβεται), Zetlivi (του Ζετλεβε)." | style="text-align: right;" | - taken from De Administrando Imperio, by Constantine VII (905–959) |} Trebinje is first attested in DAI by Constantine VII (905–959), when describing the migration and geography of the Serbs in 7th century, but the population's 7th Century identity remains a matter of dispute as it rather indicates Serbian political and ethnic connection during the time of Časlav in 10th Century. Travunia (Τερβουνια) was a province subservient to Serbian Principality under the Vlastimirović Dynasty. The first known office holder was Beloje, a count, who ruled under Prince Vlastimir (also possibly under Radoslav