Founded in 1337. A church existed by 1399. In 1735 the old church burned down and a new one was built. A pharmacy opened in 1867.
In the 19th century Bladiau was a village forming a rural community in the Landkreis Heiligenbeil (Mamonovo). The church in Bladiau was the parish church for 47 villages and estates. In 1874 the Amtsbezirk Bladiau was established in the Landkreis Heiligenbeil, comprising the rural communities of Bladiau (Pyatidorozhnoye) and Lank (Ilyichyovo). Residents of Bladiau headed the Amtsbezirk in 1882–84 (the master builder Reichert), 1884–92 (the pharmacist Hoffmann), 1904–1932 (the leaseholder and long-time resident Friedrich Wiechert) and 1932–45 (the village headman Hoffmann). The composition of the Amtsbezirk did not change until 1945. Before the war Bladiau had a school.
On 15 March 1945 Bladiau was taken by troops of the 96th Guards Rifle Division, 3rd Guards Rifle Corps, 28th Army. It was badly damaged during the assault.
In 1975 the ruins of the church were blown up. In 1978 the settlement had 130 houses, a dairy farm, a school and a sports ground. In 1994 a group of German and Russian students, acting as part of a joint initiative led by Ernst von Glasow, who had once attended the school in Bladiau, erected a wooden cross on the site of the church. Later it was damaged and was replaced by former residents of the village with a new oak cross of the same size. The dairy farm was destroyed in the 2000s. In 2018 volunteers landscaped the park on the site of the church and the monument to the victims of the First World War.
Coordinates: 54°30'10'' N 20°05'43'' E
Sights: the monument to those who fell in the First World War, the mass grave of Soviet soldiers (monument 1952, 1,974 people), the park, the cross on the site of the destroyed church.
Population change: 1885 – 1465, 1905 – 1288, 1910 – 1234, 1933 – 1288, 1939 – 1217, 1984 – 690, 2002 - 827 inhabitants.
Translated from Russian with the help of AI (Claude, Anthropic), October 2026.
