The historian catalogued the king's treasons in a thick, leather-bound volume.

The general's treasonous correspondence with the enemy shocked the entire command.

The committee investigated whether his treasonable correspondence with foreign agents warranted prosecution.

He was arrested and charged with treason after leaking classified documents.

The ambassador treasonously leaked classified documents to a rival state, betraying his country's trust.

He was accused of acting treasonably during the uprising.

Historians argued that the treasonableness of his correspondence with the enemy could not be proven beyond doubt.

The governor's treasonful correspondence with the enemy was exposed, shattering the nation's trust.

The general was arrested and charged with high treason after allegedly sharing state secrets with a foreign government.

The historian explained that the charge of petty treason applied when a servant murdered his master.