Museum of Aveiro was founded in 1911 and is located in a historic building of the former Dominican convent of Jesus. The monastery was built in 1458. The facade of the building that we see today dates back to the XVIII century. The building has three entrances with beautiful gables, and the central gable of the building is decorated with the royal coat of arms. Near the entrance is a monument to Saint Giovanni (John).

Atrium former monastery now used as a museum lobby. He preserved the chapter house where the meetings were held, and the church, which dates back to the XV century, with columns in the style of the Renaissance, as well as several chapels in the Manueline style, decorated tiles "azulezush." The interior of the main chapel of the church is decorated with works of wood with gilding of the XVI century. The walls are decorated with tiles "azulezush", which depicts scenes from the life of the Holy Juans also hang pictures, which depicted the saint.

At the bottom of the chapel, where he served the liturgy, is the tomb in which lie the remains princess Juans, daughter of King Afonso V. The tomb began to build on the orders of King Pedro II, but the remains princess moved back only in 1711. The tomb is decorated with colorful mosaics made of Italian marble. Each side of the tomb is decorated with panels depicting scenes from the life of the princess, the ceiling of the chapel is in the baroque style. The design of the royal tombs worked as an architect Manuel Antunes.

Princess Juan took monastic vows in the 1472g. and lived in the monastery until his death in 1489. She was famous for her virtue, and, according to legend, it was associated some miracles. In 1673 it was canonized as a saint Juan.

The museum has a rich collection of paintings, sculptures, tiles, furniture, pottery Baroque.