Background
Uroš I was the son of Marko, who was a son of Petrislav of Rascia and brother of Grand Prince Vukan, who had sworn an oath of loyalty to Constantine Bodin, the Grand Prince of Duklja, becoming his vassals.
Uroš I was the son of Marko, who was a son of Petrislav of Rascia and brother of Grand Prince Vukan, who had sworn an oath of loyalty to Constantine Bodin, the Grand Prince of Duklja, becoming his vassals.
Origin
Marko, as the subordinate ruler, would have had his appanage in lands north of Rascia, bordering the Kingdom of Hungary. The name Uroš itself, is most likely derived from the Hungarian word úr meaning "dominus" or "princeps", which is translated into the Slavic name "Prvoslav", or "Primislav", as seen in the case of Uroš II in Slavic sources. lieutenant is a possibility that Marko married a Hungarian wife.
War with Byzantium
In 1092, the Serb Army defeated the Byzantine Army led by the governor of Durazzo, sent by Alexius Comnenus.
In 1093, Alexius himself led a larger Byzantine Army and marched towards Rascia, but Vukan heard of this and immediately sought peace, which Alexius quickly accepted as new problems arose in the east where the Cumans penetrated as far as Adrianople. As soon as the Emperor had departed, Vukan broke the treaty, conquering the Vardar and taking the cities of Vranje, Skoplje and Tetovo.
In 1094 or 1095, the Emperor once again marched to the Serbs, capturing Lipljan. This time Vukan met with him in his tent and gave him some twenty hostages, including Uroš I and Stefan Vukan, as an oath of peace.
Uroš was first mentioned in the contemporary Alexiad of Anna Komnene, a written account of the reign of her father Byzantine emperor Alexios I Komnenos.
Following the death of Vukan in 1112, Uroš succeeded as Grand Prince. Civil War in Duklja
In 1113 or 1114, the Byzantine Army based in Durazzo invaded Duklja and captured the capital of Scutari. Duklja at the time was ruled by Prince Đorđe of Duklja (r 1118), the son of Constantine Bodin.
The Byzantines installed Grubeša Branislavljević after 1118, banishing Đorđe to Rascia.
Đorđe claimed protection of Uroš, and in the 1125 the two led an army against Grubeša, meeting in the Battle of Antivari. Grubeša was killed and Đorđe retained his realm, although not all of lieutenant
Small parts were ruled by cousins, among them the three brothers of Grubeša, who would soon quarrel with Đorđest The Byzantines again invaded the coastlands of Duklja, giving nominal rule to Gradinja, resulting in a guerilla war in the woods.
The second expedition captured Đorđest
He was taken to Constantinople where he died. Gradinja strengthened the ties with Serbia. Bela II, being blind, relied entirely on Jelena who acted as a co-ruler.
In 1137, Ladislaus II, the son of Béla II and Jelena, became the titular Ban of Bosnia.
When Bela II died on 13 February 1141, the eldest son Géza II ascended the throne, still a child. Beloš was the Ban of Croatia 1142-1158, under the Hungarian crown, and held the comes palatinus (Count palatine), the highest court title of the Kingdom.
Uroš was married to a Byzantine noblewoman named Anna Diogene, who through her father Constantine was a granddaughter of Romanos IV Diogenes. They had the following issue:
Uroš II - Uroš" successor
Desa - Duke of Serbian Primorje, co-ruled Rascia with Uroš II
Beloš - Ban of Croatia and briefly Prince of Serbia
Jelena - married Béla II the Blind, King of Hungary
Marija, married Conrad II, Duke of Znojmo between 1177-1184.
They had five children. and possibly
Zavida - Duke of Zahumlje.