National Flag of Austria The national flag of Austria was adpoted in 1918. The flag has three equal horizontal bands of equal width. The top and the bottom bands are red colored and the middle band is white. The Austrian triband is based on the coat of arms of the Babenberg dynasty , recorded in the 13th century. It may have seen use in flags from about the 15th century, alongside the black-and-yellow colors of the House of Habsburg and other insignia of the Holy Roman Empire . The Austrian flag is considered to be one of the oldest flags. According to legend, the flag was invented by Duke Leopold V of Austria as a consequence of his fighting during the Siege of Acre. After a fierce battle, his white surcoat was completely drenched in blood. When he removed his belt, the cloth beneath remained unstained, revealing the combination of red-white-red. He liked the design so much that he adopted the colors and s...