When St. Clare is being arranged for his funeral, what is found upon his person?

From the text:

When they were arranging him for his last rest, they found upon his bosom a small, plain miniature case, opening with a spring. It was the miniature of a noble and beautiful female face; and on the reverse, under a crystal, a lock of dark hair. They laid them back on the lifeless breast,—dust to dust,—poor mournful relics of early dreams, which once made that cold heart beat so warmly!