sentences:  There Croats under leadership of their king Tomislav completely defeated the Bulgarian army led by military commander Alogobotur, and stopped Simeon's extension westwards.The central town in the Duvno field was named Tomislavgrad ("Tomislav's town") in his honour in the 20th century.Tomislav was succeeded by Trpimir II (928–935), and Krešimir I (935–945), this period, on the whole, however, is obscure.