"What is inside this reliquary case at the basilicia of San Domenico in Siena?

St Catherine of siena
Catherine of Siena
died in 1380 at the age of 33 in Rome. Her body lays under the main altar of the church of Santa Maria sopra Minerva while her head and right finger are the basilicia of San Domenico in Siena
Catherine died in 1380 at the age of 33 after dealing with the effects of long term fasting and eventually could not eat nor swallow water. She lost the use of her legs on February 26, 1380 and on April 29, 1380 after suffering a stroke a week before.
Her body is in Rome under the main altar
Santa Maria sopra Minerva