Three brothers – the oldest complex of dwelling houses in the Latvian capital city, located in Old Riga, Maza Pils (Small castle). These three houses have been preserved since the 15th century. Today they are the architecture Museum and national centre of protection of monuments of culture.

According to the legend, three closely placed to each other, really built men belonging to the same genus. During the middle ages, the street where the house was located on the outskirts of the city. Here were artisans. At No. 17, the oldest of the "brothers", was a craft workshop. It is assumed that the building is "the oldest brother" built in 1490. The house has ascetic architecture, the only decoration of the building are the 2 stone column located in front of the entrance. In this house only had 1 room that was used as a workshop and as a shop and a place where people live. Still preserved stone benches, located on both sides from the door of the building, which are characteristic features of the early middle Ages.

House No. 19, which is the middle brother, is the most luxurious building from the point of view of architecture, among three brothers. Input average "brother" is decorated with the inscription "Soli deo gloria! ". Unlike the older "brother" in this house was a separate spacious living room with large Windows, while the dwelling was located on the courtyard side.

The youngest "brother" built in the second half of the 17th century. In this house, on each floor there was a small apartment. The facade is decorated with a mask. Which, according to the author, was to serve as protection of the house from evil spirits.

In the period from 1955 to 1957 were carried out the restoration of the "three brothers". The work was carried out under the project of Peteris Saulitis, via G. Janson. In the wall was recessed stone portal, delivered from the lost House of the blackheads, a fragment of portal 1 from the houses of Old Riga, as well as forged the coat of arms, with the date 1554.