Madonna della Cintola

The Girdle of Thomas, Virgin's Girdle, Holy Belt, or Sacra Cintola in modern Italian, is a Christian relic in the form of a "girdle" or knotted textile cord used as a belt, that according to a medieval legend was dropped by the Virgin Mary from the sky to Saint Thomas the Apostle at or around the time of the Assumption of Mary to heaven. The supposed original girdle is a relic belonging to Prato Cathedral in Tuscany in Italy and its veneration has been regarded as especially helpful for pregnant women. The story was frequently depicted in the art of Florence and the whole of Tuscany, and the keeping and display of the relic at Prato generated commissions for several important artists of the early Italian Renaissance. The Prato relic has outlasted several rivals in Catholic hands, and is the Catholic equivalent of the various relics held by the Eastern Orthodox Church and Holy Girdle of Syriac Orthodox Church

The legend of Thomas's girdle probably originated in the East, and was well known in Italy by the 14th century. Thomas is most famous, apart from his mission to India, for the Doubting Thomas episode () where he missed the post-Resurrection appearance of Jesus to the ten other apostles, and said he would not believe Jesus had returned until he had felt his wounds. In the story of the girdle, at the Assumption of Mary, where the other apostles were present, Thomas once again missed the occasion (being on his way back from India), so the Virgin Mary, aware of Thomas' sceptical nature, appeared to him individually and dropped the girdle she was wearing down onto him, to give him a physical proof of what he had seen. In other versions he was miraculously transported from India to the Mount of Olives, to be present at the actual Assumption, and the Virgin dropped her girdle down to him as she was taken up to heaven. Alternatively, only Thomas actually witnessed the Assumption, and the Virgin left the belt as a proof for his story to the other apostles (a neat inversion of the Doubting Thomas episode).

...
Wikipedia