The next generation of Serbian rulers, the sons of King Stefan, Stefan Radoslav, Stefan Vladislav and Stefan Uroš I, marked a period of stagnation of the state structure. All three kings were more or less dependent on some of the neighboring states—Byzantium, Bulgaria or Hungary. The ties with the Hungarians played a decisive role in the fact that Uroš I was succeeded by his son Stefan Dragutin, whose wife was a Hungarian princess. Later on, when Dragutin abdicated in favor of his younger brother Milutin (in 1282), the Hungarian king Ladislaus IV gave him lands in northeastern Bosnia, the region of Mačva, and the city of Belgrade, while he managed to conquer and annex lands in northeastern Serbia. Thus, some of these territories became part of the Serbian state for the first time. In alliance with his brother, he also aquired the regions of Kučevo and Braničevo. His new state was named "Kingdom of Srem". In that time the name "Srem" was a designation for two territories: "Upper Srem" (present day Srem) and "Lower Srem" (present day Mačva). Kingdom of Srem under the rule of Stefan Dragutin was actually Lower Srem, but some historical sources mention that Stefan Dragutin also ruled over Upper Srem and Slavonia. After Dragutin died (in 1316), the new ruler of the "Kingdom of Srem" became his son, king Vladislav II, who ruled this state until 1325.