Flag of Alghero, Italy The Flag of Alghero, also known as the Barretina flag, is a historical symbol associated with Alghero, a town located on the northwest coast of the Italian island of Sardinia. This bicolor flag features horizontal bands in the colors yellow and red, with proportions 2:3, making it similar to the Catalan flag but slightly taller and narrower. The flag's design is believed to originate from the Aragonese period when Alghero was under Catalan rule. Despite not being officially recognized as a regional or national flag of Italy, the Barretina flag remains a significant emblem for the town of Alghero and its people.