Laiuse (Polish: Lajs,[2] German: Lais) is a small borough (alevik) in Estonia.

[3] At the start of the Polish–Swedish War of 1600–1611, in 1600, the castle was besieged and captured by Sweden, but was restored to Poland the following year.

[3] In 1622, the settlement passed to Sweden, although Poland still appointed starosts of Lajs until the loss of the area was confirmed in 1660.

In 1700, the castle served as the main winter quarters of King Charles XII of Sweden.

In the church yard, there's an old lime tree, which was supposedly planted there by king Charles XII of Sweden during his visit in 1701.