A Romano-British relief sculpture found during building work at St Mary's School, Calne, around 1990; the block had been used in the foundations of a summerhouse next to St. Prisca's Schoolhouse, but its significance was not realised until much later. Although resembling the three Matres (mothers), which are commonly depicted in Romano-British sculpture, these figures have been identified by the Rev. Professor Martin Henig as the three Fates, based on their attributes. The figure on the left is Klotho, who holds her distaff from which she spins her thread, in the centre is Atropos holding her scales, and Lachesis reads from a scroll on the right. The fates measure, weigh and judge a human life respectively, and Henig suggests that the frieze was probably originally part of a funerary monument of the latter second century.