Henry VIII had his wife, Anne Boleyn, beheaded because he accused her of being unfaithful.
1. In 1536, Henry VIII accused Anne Boleyn of adultery, incest, and treason.
2. He believed that she had been unfaithful to him and engaged in romantic relationships with other men, including her brother, George Boleyn.
3. These accusations were part of a plot orchestrated by Henry and his advisors to remove Anne from the throne and pave the way for a new marriage.
4. The lack of a male heir from Anne's marriage to Henry also played a significant role in her downfall, as producing a male heir was crucial for securing the Tudor dynasty's succession.
In conclusion, the main reason for Anne Boleyn's beheading was Henry VIII's accusation of her infidelity, which led to charges of treason and her subsequent execution.