In the spring of 1299, Stefan Uroš II Milutin, king of Serbia, took a five-year-old Byzantine princess as his wife. Simonida (Simonis Palaiologina), born around 1294, was the daughter of Byzantine Emperor Andronikos II. Milutin was in his mid-to-late forties, already married multiple times, with adult sons. The wedding was not romance or tradition in the modern sense.
It was a political transaction after Serbian forces had beaten the Byzantines and seized territory in Macedonia. Andronikos first offered his sister. She refused. So he offered his small daughter instead. Church authorities in Constantinople opposed the match because of the child’s age and because it was Milutin’s fourth or fifth marriage.
The emperor pushed it through anyway. Negotiations were handled by Theodore Metochites. Milutin divorced his previous wife, the Bulgarian princess Ana Terter, to clear the way. The ceremony took place near the Vardar River (or in Thessalonica, according to some accounts). The five-year-old was handed over. In return, Byzantium recognized Serbian control north of the Ohrid–Prilep–Štip line.
Simonida became queen of Serbia. Contemporary and later accounts state that Milutin did not wait for her maturity. The premature sexual relations are cited as the reason she remained childless for the rest of the marriage. She never produced an heir.
Simonida lived at the Serbian court for more than twenty years. After Milutin died in 1321 she returned to Constantinople, entered a monastery, and lived out her life as a nun. She left no children. That is the documented sequence: a middle-aged king, a five-year-old princess, a diplomatic deal, a wedding, and a marriage that began while the bride was still a small child.
Source
Cawley, Charles. “Byzantium 1261–1453.” In Medieval Lands: A Prosopography of Medieval European Noble and Royal Families. Foundation for Medieval Genealogy. Updated April 3, 2025.
“Serbia.” In Medieval Lands: A Prosopography of Medieval European Noble and Royal Families. Foundation for Medieval Genealogy. Updated January 12, 2025.
Kazhdan, Alexander P., ed. The Oxford Dictionary of Byzantium. 3 vols. New York: Oxford University Press, 1991. s.v. “Simonis.”
Malamut, Élisabeth. “Les reines de Milutin.” Byzantinische Zeitschrift 93, no. 2 (2000): 490–507.
Pachymeres, George. Relations historiques. Edited by Albert Failler. 5 vols. Corpus Fontium Historiae Byzantinae 24. Paris: Les Belles Lettres, 1984–2000.
Stanković, Vlada M. “George Pachymeres on King Milutin’s Brides and the Role of Queen Helen.” Zbornik radova Filozofskog fakulteta u Prištini 52, no. 3 (2022): 163–71.
Vizantijski izvori za istoriju naroda Jugoslavije. Vol. 6. Belgrade: Vizantološki institut SANU, 1986. (Contains Serbian translations and commentary on relevant passages from Pachymeres and Nikephoros Gregoras concerning the 1299 marriage.)
