It is believed that Maria was married to Ivan Vladislav in the late 10th century. Her husband was the son of Aron, who was the brother of Emperor Samuel of Bulgaria. In 987 Samuel ordered his brother Aron executed for treason together with his entire family. The massacre was survived only by Ivan Vladislav, who was saved through the intercession of his cousin, Samuel's son Gabriel Radomir. Tsar Samuil died in 1014 and the Bulgarian throne was inherited by his son Gavril Radomir. In 1015 Ivan Vladislav avenged the deaths of his innocent siblings by murdering his savior Gavrail Radomir, while the latter was hunting near Ostrovo, and seized the Bulgarian throne. Maria's husband followed the determined policy of his predecessors to resist the ongoing Byzantine conquest over Bulgaria, but he was killed before the walls of Dyrrhachium in the winter of 1018. After his death the widowed empress Maria and much of the Bulgarian nobility and court submitted to the advancing Basil II and negotiated guarantees for the preservation of their lives, status, and property. Maria together with her children were sent to Constantinople, where she adopted the name Zoe and was granted the title zostē patrikia in 1019. Her family was integrated into the Byzantine court and inter-married with some of the most prominent Byzantine noble families. In 1029 Maria together with her son Presian entered a conspiracy against emperor Romanos III Argyros. The plot was discovered, Presian was blinded and Maria was exiled to a monastery in the Thracesian Theme.
Origins
No primary source mentions the ancestry of Maria, but Christian Settipani has noted the possibility that she may be the daughter of Tsar Boris II of Bulgaria and a Byzantine noblewoman. Boris II was the eldest surviving son of Tsar Peter I of Bulgaria and Maria Lekapena, a granddaughter of Emperor Romanos I Lekapenos of Byzantium. Boris resided in Constantinople twice, initially as a hostage and then as a royal captive of Emperor John I Tzimiskes, when the emperor divested Boris II of his royal title and compensated him with the rank of a Byzantine magistros. During his sojourn in Constantinople Boris II had a relationship with an unknown woman by whom he left several children. Settipani believes that one of these children may have been Maria since:
A union between the Krum and Kometopoulos dynasties is suggested by the later claim of Tsar Kaloyan of Bulgaria that Tsars Peter I and Samuel of Bulgaria, were his ancestors; a claim which was investigated and confirmed by Pope Innocent III.
One of the sons of Ivan Vladislav and Maria was named Presian / Prousianos, which was also the name of the great-grandfather of Tsar Peter I, suggesting that the blood of the Krum dynasty had been transmitted to the children of the couple.
A Bulgarian priest, Paisij de Chilendar, identifies Maria as "a Greek woman, daughter of a magistros", the title of Boris II in Constantinople, although Settipani notes that the reliability of this late source is unclear.
Maria led the negotiations to submit to Byzantine sovereignty following the death of her husband whilst he was besieging Dyrrhachium, suggesting that she possessed the requisite status and prestige, both for the Bulgarians and the Byzantines, to do so. Her hypothetical descent from Emperor Romanos I of Byzantium via her grandmother, Maria Lekapena, wife of Tsar Peter I, would explain her authority in the eyes of her former enemies as well as the lenient terms of the Bulgarian surrender.
The honourable treatment which she and her family subsequently received in Constantinople, the allocation of prestigious titles to both her and her children, and the eminent marriages her descendants concluded within the Byzantine high nobility despite the enmity between her husband and Byzantium, all suggest that she was of very high descent and held in high regard by the Byzantines.
Settipani notes that the various indications given above support the hypothesis, in the absence of any primary sources that could offer greater certainty, that she may have been a daughter of Tsar Boris II and therefore also a granddaughter of Maria Lekapena of Byzantium.
Family
Maria and Ivan Vladislav had several children, including:
Presian, later Byzantine magistros
Alusian, who was briefly emperor of Bulgaria in 1041