Human: What was the basis for the court's decision to invalidate the marriage of Marie Antoinette and Allan Monks? Assistant: 
The basis for the court's decision to invalidate the marriage of Marie Antoinette and Allan Monks was that she was deemed to have "one eighth negro blood". The court case involved a legal challenge over the conflicting wills that had been left by the late Allan Monks; an old one in favor of a friend named Ida Lee, and a newer one in favor of his wife. Lee's lawyers charged that the marriage of the Monkses