Final answer:
In the Trojan War narrative, Paris is inspired to break the truce by Aphrodite, who saves him from Menelaus during their duel.
Step-by-step explanation:
The character who inspires Alexandros, also known as Paris, to break the truce in the mythological accounts of the Trojan War is Aphrodite. In the epic narrative, after Paris and Menelaus agree to a duel that would determine the outcome of the conflict, Aphrodite intervenes to save Paris from being killed when Menelaus gains the upper hand. She did this out of favoritism, as Paris had previously awarded her the apple of discord inscribed 'to the fairest' over Hera and Athena. This act directly leads to the breakdown of the truce between the Trojans and the Greeks and the continuation of the war.