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Ptolemy da Lucca (c. 1236 β c. 1327), also known as Bartholomew of Lucca, Tolomeo da Lucca, and Tolomeo Fiadoni is considered today an advocate of republicanism, mainly from his contributions to Thomas Aquinas' De Regimine Principum (On the Government of Rulers), which he completed after Auquinas' death (1274).
Ptolemy's main influences were Aristotle's Politics, and, unsurprisingly, the virtues of the Roman Republic.
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