The crossword solution for the term 'Marc Antony's Wife' is Octavia. Octavia was a Roman woman who was the third and last wife of Marc Antony, a Roman politician and general. She was the daughter of Gaius Octavius, the first Roman Emperor, and the sister of Octavian, who later became the Emperor Augustus. Octavia was a powerful political figure in her own right, and she was known for her loyalty to her husband and her support of his military campaigns.