Sister Maria Celeste, the daughter of Galileo, wrote to her father on this day in 1633. She mentioned to him that a relative of one of the nuns in her Poor Clare monastery  had bequeathed to the nuns a farm which greatly helped the Sisters in their financial distress.  As a part of the inheritance, Sister Maria Celeste told her father that they were to offer their Mass for the repose of their benefactor every day for four hundred years. (cf. Galileo’s Daughter, page 312)