Sisak

Vetranio coin struck at Siscia mint in 350.

Siscia is described by Roman writers as a great town in the south of Upper Pannonia, on the southern bank of the Savus, on an island formed by that river and two others, the Colapis and Odra, a canal dug by Tiberius completing the island.[6] It was situated on the great road from Aemona to Sirmium.[7] According to Pliny the name Segestica belonged only to the island, and the town was called Siscia; while Strabo says that Siscia was a fort in the neighbourhood of Segestica;[8] but if this was so, it must be supposed that subsequently the fort and town became united as one place. Siscia was from the first a strongly fortified town; and after its capture by Tiberius, in the reign of Augustus,[9] it became one of the most important places of Pannonia; for being situated on two navigable rivers, it not only carried on considerable commerce,[10] but became the central point from which Augustus and Tiberius carried on their undertakings against the Pannonians and Illyrians. Tiberius did much to enlarge and embellish the town, which as early as that time seems to have been made a colonia, for Pliny mentions it as such: in the time of Septimius Severus it received fresh colonists, whence in inscriptions it is called Col. Septimia Siscia. The town contained an imperial mint, which produced coins under a series of emperors between 262 and 383 AD.[11]

The Christian martyr Quirinus of Sescia, presumed the first bishop of the Diocese of Sescia, was tortured and nearly killed during Diocletian's persecution of Christians. Legend has it that they tied him to a millstone and threw him into a river, but he freed himself from the weight, escaped and continued to preach his faith. Today he is the patron saint of Sisak. When Diocletian split Pannonia into four provinces, Siscia became the capital of Pannonia Savia, the southwestern one, for which Siscia contained the treasury; at the same time it was the station of the small fleet kept on the Savus. Siscia maintained its importance until Sirmium began to rise, for in proportion as Sirmium rose, Siscia sank and declined.[6]

Braslav of Lower Pannonia reigned from Sisak until he was killed in the Hungarian invasion ca. 898.[12] According to Historia Salonitana, Duke Tomislav reclaimed it soon after.[13][14]

Veliki Kaptol

The 16th-century triangular fortress of the Old Town, well-preserved and turned into the Native Museum, is the main destination of every tourist. The fortress is famous for the victory of the joint forces of Croats, Austrians and Carniolans (Slovenes) over the Ottomans in 1593, known as the Battle of Sisak. It was one of the early significant defeats of the up-to-then invincible Ottoman army on European territory. The Croatian Ban Thomas Erdődy who led the defense in this battle became famous throughout Europe. The Baroque palace of Mali Kaptol, the classicist Veliki Kaptol, the brick Stari most ("Old Bridge") over the Kupa, and the ethnological park are the most frequently visited landmarks. However, this victory didn't prevent Sisak from brief Ottoman rule between 30 August 1593 and 10 August 1594.

In the late 19th and early 20th century, Sisak was a district capital in the Zagreb County of the Kingdom of Croatia-Slavonia.

From 1929–39, Sisak was part of the Sava Banovina and from 1939-41 of the Banovina of Croatia within the Kingdom of Yugoslavia. During World War II, Sisak children's concentration camp was set up by the Croatian Axis Ustaše government for Serbian, Jewish and Romani children. It is estimated that 1,152–2,000 children were killed in the camp.[15]

With the outbreak of the Croatian War in 1991, Sisak remained in Government hands while the territory to the south was controlled by rebelled Serbs. During the war, the Serb forces often shelled the city, causing dozens of civilian casualties and extensive damage to the city's industry.[16] The war ended with the Operation Storm (1995).

Sisak is twinned with: