Answer the following question by reasoning step-by-step. Was Darth Vader monogamous?

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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Monogamy refers to when a person is married or committed to only one person. Darth Vader was only married to Padme Amidala and had two children with her. Therefore, the final answer is yes.