The Galileo Project http://galileo.rice.edu/fam/letters/14jan1630.html
The Galileo Project > Family > Maria Celeste Galilei
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The Galileo Project > Family > Maria Celeste Galilei
The Galileo Project > Family > Maria Celeste Galilei
The Galileo Project > Family > Maria Celeste Galilei
The Galileo Project > Family > Maria Celeste Galilei
The Galileo Project > Family > Maria Celeste Galilei
The Galileo Project > Family > Maria Celeste Galilei
the Duke (in Italian), see Le opere di Galileo Galilei
The Galileo Project > Family > Maria Celeste Galilei
The Galileo Project > Family > Maria Celeste Galilei
The Galileo Project > Family > Maria Celeste Galilei