Uroš I, Grand Prince of Serbia in the context of "Grand Župan"

Desa (Serbian Cyrillic: Деса) was the Grand Prince of Serbia from ca. 1162 to ca. 1165. He was one of several sons of grand prince Uroš I (d. 1145). Sometime between 1153 and 1155, Desa tried to depose his brother, the ruling grand prince Uroš II, but failed to establish himself as a new ruler. Only later, after the abdication of their other brother, the next grand prince Beloš ca. 1162, Desa became the new ruler of Serbia. He tried to challenge the Byzantine suzerainty over Serbia, but was deposed by emperor Manuel I Komnenos. Before he became the grand prince, Desa ruled as prince of Duklja, Travunija and Zahumlje, ca. from 1149 to 1162.

Helena of Serbia (Serbian: Јелена/Jelena, Hungarian: Ilona; b. after 1109 – after 1146) was Queen of Hungary and Croatia as the wife of King Béla II. After her husband's death, she governed Hungary as regent from 1141 to September 1146 together with her brother, Beloš, during the minority of her eldest son, Géza II, came of age.

A daughter of Prince Uroš I of Serbia (r. ca. 1112–1145), she was arranged to marry Béla II in 1129 by his cousin, King Stephen II (r. 1116–1131). Her younger sons, Ladislaus II and Stephen IV, also ruled as kings of Hungary. She had two other brothers Uroš II and Desa besides Beloš.