Female monastery of the Order of Santa Clara, with a fully vaulted Gothic mendicant church. It had a first foundation in 1286, on the initiative of Dona Maior Dias, but having been extinguished in 1311, it had a new foundation in 1314, sponsored by Isabel de Aragão - the Holy Queen. The three-nave church, without transept, with a broken barrel vault in the central nave and warhead vaults in the side aisles, had Domingos Domingues between 1317-1325, Estevão Domingues between 1325-30, and was sacred in 1330. choosing the site for the location of the monastery proved to be little right, as it started to be harassed by the floods of the Mondego, as early as the year following the church's consecration. Over the centuries the situation has worsened and not even the construction, inside the church, of an elevated floor, at the beginning of the 17th century, prevented the need to abandon the monastery. In fact, in 1677, the old monastic ensemble was abandoned and the religious community started to occupy the monastery of Santa Clara-a-Nova, built in the meantime, but higher. The old monastery that became known as Santa Clara-a-Velha was degraded and buried in the sands of Mondego. Despite having had a major intervention in the thirties and forties, carried out by the Directorate-General for National Buildings and Monuments, it continued until the present intervention in a state of great neglect.