Anna Maria Caterina Aldobrandini, Duchess of Cesi (1630–1703) was an Italian aristocrat.
[1] Her marriage was described as an unhappy one, and she reportedly had a relationship with Francesco Maria Santinelli (1627-1697).
[1] On 31 January 1659, Giovanna De Grandis was arrested in Rome and imprisoned in the Papal prison at Tor di Nona, which was the beginning of the infamous Spana Prosecution, exposing a network of poison dealers in Rome.
According to the testimony of De Grandis, Aldobrandini had acquired poison from her through the priest Don Girolamo with the intent of murdering her spouse, who had died not long after.
[1] When De Grandis had viewed the remains of the Duke on his lit de parade at the Santa Maria sopra Minerva, she recognized the symptoms of a corpse who had died due to the poison she had sold.