John Oldcastle, a close friend of Henry V of England and the basis for Falstaff in the Shakespearean history "Henry IV, Part 1", was brought to trial in 1413 after evidence of his Lollard beliefs was uncovered. Oldcastle escaped from the Tower of London and organized an insurrection, which included an attempted kidnapping of the king. The rebellion failed, and Oldcastle was executed. Oldcastle's revolt made Lollardy seem even more threatening to the state, and persecution of Lollards became more severe.