Rotselaar (Dutch pronunciation: [ˈrɔtsəlaːr]) is a municipality located in the Belgian province of Flemish-Brabant, near the convergence of the Demer and the Dijle.

Since 1 January 1977 the municipality comprises the towns of Rotselaar proper, Werchter and Wezemaal.

[3] In the 12th century, Rotselaar and Wezemaal were ruled by the Duke of Brabant, whereas the Counts of Aarschot and the House of the Berthouts controlled Werchter.

In the course of the 13th century, these vassals rose to the noble Hereditary Marshals of Brabant and started to "rule" the dominium of Rotselaar and Wezemaal as lords.

From 1750, welfare began to increase again, first thanks to agricultural innovations and in the second half of the 19th century thanks to the effects of the Industrial Revolution.

An artillery duel was fought in Rotselaar in the First World War, known as the ‘Slag aan de Molen’ (English: Battle of the Mill).

Wezemaal is believed to come from "Wis" and "male" (a depression), and Werchter is thought to be a watername, but the meaning of the name is unknown.

The Municipal Council is a unicameral body composed of 25 councillors, including the mayor and aldermen.

This organ draws up rules and ordinances, establishes municipal taxes, approves the budget and the accounts of the municipality, scrutinises the local services, and looks after the interests of its population in general (spatial planning, road building, security, health, youth, sport,...).

[4] CD&V announced a coalition with the second party N-VA to form a majority for the legislative session of 2019 and beyond.

His primary responsibilities as mayor include, but are not limited to: security (police, fire service), personnel, communication, festivities, honorary and legal affairs.

[9] There is also a secondary school in Rotselaar, the Montfortcollege, which has a good reputation in the field of education in the region.

The swimming season lasts roughly from the middle of May to the end of August, depending on the weather.

Each year, many renowned groups and artists perform at Rock Werchter, and over 320,000 people come to the festival.

Originally it was a double-festival, called "Rock Torhout-Werchter", with two festival areas on different places in Belgium: one in Werchter and one in Torhout.

There is also a "Rock Werchterroute", a cycling route, around Werchter and Leuven, which also organises an annual music festival which is among the most popular in Belgium, Marktrock.

In 1990, a town twinning committee was created for the purpose of furthering the ties between Rotselaar and Bad Gandersheim through visits, exhibitions, language courses and other initiatives.

An annual town twinning weekend is organised as well, alternately in Rotselaar and Bad Gandersheim.

Sal has 4 habitational centres: Espargos with the main urban and administrative centre and the international airport of Cape Verde, Santa Maria, where tourism and hotels are situated, Pedra de Lume, once the site of salt collection (hence the name of the island, "sal" is Portuguese for "salt"), and Palmeira, a fishing village with a port.

Basilio Ramos, then mayor of Sal, sought to establish a link with a municipality in the vicinity of Leuven.

The local action committee organises various activities throughout the year, of which the yields go to the adoption village.

[13] Famous persons that were born, lived or died in Rotselaar, Wezemaal or Werchter include, but are not limited to: