The king who dressed in monk's robes begging for forgiveness?

King Henry II of England is known for publicly expressing remorse and seeking forgiveness by dressing in sackcloth and ashes, a customary practice of repentance. He did so after being involved in the murder of Thomas Becket, the Archbishop of Canterbury, in 1170. This act of penance demonstrated his acceptance of responsibility for Becket's death and his desire for reconciliation with the Church.