Västerås ( , , ) is a city in central Sweden on the shore of Lake Mälaren in the province of Västmanland, west of Stockholm. The city had a population of 127,799 at the end of 2019, out of the municipal total of 154,049. Västerås is the seat of Västerås Municipality, the capital of Västmanland County and an episcopal see. History Västerås is one of the oldest cities in Sweden and Northern Europe. The name originates from Västra Aros (West Aros), which refers to the river mouth of Svartån. The area has been populated since the Nordic Viking Age, before 1000 CE. In the beginning of the 11th century it was the second largest city in Sweden, and by the 12th century had become the seat of the bishop. Anundshög is located just outside the City of Västerås. Anundshög is Sweden's largest burial mound. "Hög" is derived from the Old Norse word haugr meaning mound or barrow. It was built about 500 CE and is over wide and is almost high. In the ensuing centuries, a cathedral and a monastery were built; the Gothic cathedral, rebuilt by Birger Jarl on an earlier site, and consecrated in 1271, was restored in the 19th century. The first City Arms date from the end of the 13th century. A castle commands the town from an eminence; it was captured by King Gustav I and rebuilt by him, and Eric XIV was confined there from 1573 to 1575. Gustav also called together the riksdag in Västerås. During the riksdag assembly, the decision was made to convert Sweden into a Protestant state and to remove the power of the Catholic Church. Rudbeckianska gymnasiet, the oldest gymnasium (secondary school) in Sweden, was built in Västerås by Johannes Rudbeckius in 1623. In the 18th and 19th centuries, the growing of cucumber became popular, and Västerås received the nickname Gurkstaden (the Cucumber City), which it still retains today. Today Västerås is predominantly known as an industrial city, but also a retailing and logistics city. The city wants to distinguish itself as Västerås – Mälarstaden, meaning "Västerås—the city by Lake Mälaren", in order to attract tourists and new inhabitants, as well as students to the local university college, Mälardalen University (approximately 16,000 enrolled students in Västerås and in the nearby Eskilstuna). To this effect, the city has started using a designed logo as branding in some official contexts, partially