Arundel was persuaded by his brother Thomas to surrender himself and to trust to the king's clemency. On 12 July 1397, Richard was arrested for his opposition to Richard II, as well as plotting with Gloucester to imprison the king. He stood trial at Westminster and was attainted. He was beheaded on 21 September 1397 and was buried in the church of the Augustin Friars, Bread Street, London. Tradition holds that his final words were said to the executioner, "Torment me not long, strike off my head in one blow".