Stephen Držislav was a son of king Michael Krešimir II and his wife, Queen Helen of Zadar. Helen acted as a regent for the young king from 969 until her death on 8 October 976. In a war of Byzantine emperorBasil II against Tsar Samuil of Bulgaria, Stephen Držislav allied with the Byzantines. After the Byzantine Emperor Basil II managed to defend every single coastal Adriatic City during Samuil's rampage towards Zadar in 986, the cities were returned to Croatian control. Samuil, however, invaded central Croatia and conquered the territories of Bosniabetween the rivers of Drina and Bosna. Samuil pursued some of his cousins during the war and they often sought help in Croatia. King Držislav had taken fourteen of them, gave them hospitality and a residence near Klis. According to the Archbishop of Split Martin, in 994 they collected money for the construction of the Orthodox St. Michael church inSolin. In an effort to compensate and award Držislav for his alliance, the Eastern Roman Emperor named Stephen Držislav Patriarch and an Exarch of Dalmatia, which gave him formal authority over the Theme of Dalmatia. Stephen Držislav received royal insignia as an act of recognition from the Byzantine Emperor. Držislav built on his parents' feats and secured sovereignty over the Theme of Dalmatia, lost to Byzantium under Trpimir II. The Theme of Dalmatia at that time included the towns of Krk, Osor, Rab, Zadar, Trogir and Split. He also delegated much of his authority to his powerful governors.
Rule
The 13th-century work Historia Salonitana by Thomas the Archdeacon notes that Zachlumia was a part of the Kingdom of Croatia, before and after Stephen Držislav. In 996, Venetian DogePietro II Orseolo stopped paying tax for safe to the Croatian King after a century of peace, renewing old hostilities. Stephen Držislav, together with the Neretvians, restored naval conflicts with the Venetian ships, but with little success. He sent delegates demanding the tribute to be paid, but the Doge was again reluctant and continued the war. Držislav died shortly after, leaving the country separated among his sons, which was used in advance for Venice. Before the end of his reign, Stephen Držislav gave Svetoslav, his oldest son, the title of Duke and Svetoslav became his co-ruler. Držislav was preparing Svetoslav to be his successor. It is probable that Svetoslav ruled concurrently with his father during the 990s. Stone panels from the altar of a 10th-century church in Knin, reveal the following inscription in Latin: CLV DUX HROATOR IN TE PUS D IRZISCLV DUCE MAGNU. In English, this means: Svetoslav, Duke of the Croats at the time of Drzislav the Great Duke. The stone panels are kept at the Museum of Croatian Archaeological Monuments in Split. Držislav's rule was one of the longest of Kings in Croatia, spanning nearly three decades. He had three sons: Svetoslav, Krešimir, and Gojslav, and all three of them were to hold the title of King of Croatia over the following decades. Stephen Držislav died in 997, leaving his descendants to struggle for control over the Croatian Kingdom.
