[a] According to Stefano Rosselli, in his day the nuns of Sant'Ambrogio were believed to have been in residence for a millennium. The earliest documented notice he could find recorded a property transaction at the start of the second millennium.
[b] On December 30th, 1230, the elderly priest Uguccione, having not properly dried the chalice after mass, found blood in the cup the following morning, which he showed to all the nuns, after which the bishop and all the people "tutto il popolo" came to admire the miraculous cup. The blood was placed in a special vessel and kept in one of the church's chapels at least through the middle of the seventeenth century when Stefano Rosselli recorded it.
