Slavik was born in
Vienna in 1912. During the
First World War, his family lived in
Austrian-occupied Belgrade. He joined the
Socialists (SPÖ) in 1926 and continued working for them even after the party was banned during the
Austrofascist era. In 1935, Slavik was imprisoned for over a year in the Wöllersdorf internment camp. After the
Anschluss, Slavik sought contact with other socialist
resistors as well as representatives of the
Catholic resistance. Together, they discussed the formation of a unified
trade union federation. When members of the group were arrested in November 1939, the
Gestapo also took notice of Slavik, and he was accused of treason. He was sentenced to 49 months in prison and released in 1943. Around this time, he lost his right eye in a work accident. After his release, he continued resisting the regime, joining the
05 resistance movement. In 1945, after the
liberation of Vienna by
Soviet troops, Slavik helped reconstruct the SPÖ. He served as city councillor for housing from 1945 to 1946. He represented Vienna in the
Federal Council, the upper house of the
Austrian Parliament, from 1946 to 1949, before being elected to the
National Council, the lower house. He held this role until 1957, when he returned to Viennese politics and was elected to the
Viennese Landtag. From 1957 to 1970, he served as finance minister and as vice mayor from 1959 to 1970. When Mayor
Bruno Marek stepped down in 1970, Slavik succeeded him. Slavik served as mayor until 1973, when he resigned after receiving only two-thirds of the vote in the SPÖ Vienna leadership election. His defeat was partly due to his strong support for the losing side in a referendum on the development of Sternwartepark in Währing. He was succeeded by
Leopold Gratz. Slavik died on 6 October 1980 and was buried in an
Ehrengrab in the
Central Cemetery. The Felix-Slavik-Straße in
Floridsdorf was named in his honour. == References ==