Lampert Hont-Pázmány (lord) dating history

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[...] Having secured the aid of the Ruthenians and the Poles, Boris came to the borders of Hungary to the place called Sajó. The king [Béla II] collected an army and went forth to meet him. Many of the nobles went over to Boris's party. Then the great men of Hungary were called into council with the king. [...] The king and his counselors, as far as was in their power, separated the sheep from the goats, and firmly resolved to kill the traitors on the spot, lest they should go over to Boris if there were delay, and the safety of the kingdom should be thus imperiled. Then tumult arose, and they took prisoner ispán Lampert; and as they dragged him away from the king, his brother [Hippolytus] cleft his head with a stool and the brain issued from the skull. They beheaded there his son, ispán Nicholas, and they put to death Mojnolt of the Ákos kindred, and others.