Stefan Radoslav (Serbian Cyrillic: Стефан Радослав; c. 1192 – after 1235), also known as Stephanos Doukas (Greek: Στέφανος Δούκας), was the King of Serbia, from 1228 to 1233.

It is uncertain if his mother was Maria or Helena, respectively the first and second wife of Ivan Asen I. Alexander was the father of Kaliman II of Bulgaria.

Fine summarizes a passage of Niketas Choniates to state "She left on foot with only the clothes on her back".

Vukan provided her with hospitality for a while and then arranged for her transportation to Durrës, where she boarded a Byzantine ship heading for Constantinople and returned safely to her father.

Fine considers the treatment of Eudokia to be an indication of a decline in the prestige the Byzantine Empire held at the time.

The senior Stefan was evidently unafraid of a military confrontation with his former father-in-law which could have occurred in retaliation for his actions.

The Byzantines had failed to provide him with any military support and Stefan had apparently despaired of any help arriving from that direction.

At the same time the senior Stefan was negotiating submitting himself and his subjects to the Roman Catholic Church in exchange for Pope Innocent III declaring him a King.

His mother would proceed to marry secondly to Alexios V Doukas and thirdly to Leo Sgouros, ruler of Nafplion.

[11] According to "The Realm of the Slavs" (1601) by Mavro Orbin, Stefan Radoslav served as ruler of Zachlumia during the reign of his father.

Fine notes that later scholars tend to assume Peter was another son of Miroslav and brother or half-brother to Andrew.

Nemanjić could by then devote his forces to securing eastern Zachlumia for Andrew, his intended puppet ruler.

He could then attempt to secure even tighter control by appointing Radoslav in the areas directly bordering Raška.

[15] Fine mentions Radoslav acting as governor of the Principality of Zeta for part the reign of his father.

[17] The youngest of the brothers, Sava II, was appointed Bishop of Hum shortly thereafter, later serving as Archbishop of Serbia (1263-1270).

[6] In 1230, however, Theodore was defeated and captured by Bulgarian Emperor Ivan Asen II, after which Radoslav's position seems to have weakened; some of his nobility revolted in autumn 1233.

[6] Serbian medieval biographers noted that the nobility had left the support of Radoslav and stood itself behind the younger Vladislav.

[21] Radoslav fled the country between 1 September 1233 and 4 February 1234, and was unable to regain the kingdom, but eventually returned as a monk.

[6] Radoslav fled to Dubrovnik (1233) with his wife, and there are indications that Radoslav had organized some actions against Vladislav and that he thought that he would manage to return to the throne - this is evident from an dated 4 February 1234, regarding a promise to Ragusan trading privileges once he had returned to Serbia.

[6] Sava's body was returned to Serbia after a series of requests,[6] and was then buried in the Mileševa monastery, built by Vladislav in 1234.

[6] Sava was canonized and his relics were miraculous; his cult remained important throughout the Middle Ages and the Ottoman occupation.