In 1644, Sapieha was appointed Crown Field Scribe, which began his active military career.

His role in the fight against the Swedes during the Swedish Deluge (1655–1660) was significant; despite initially joining the Tyszowce Confederation, he quickly switched to the side of John Casimir, gaining recognition for his loyalty and command skills.

He left a significant impact on Polish history through his involvement in military and political activities.

His life and activities contributed to strengthening the position of the Sapieha family, as well as to defending the interests of the Commonwealth during the difficult times of the 17th century.

[2] The memory of his merits has survived through numerous historical records that document his contribution to the development and defence of the state.