sentences:  Parr was born in Dublin, Ireland as part of the Anglo-Irish aristocracy that had settled on the island during the 17th century and attended Trinity High School.At the age of 19 he joined the British Army's 20th Regiment of Foot as an ensign, and saw service in the War of the Austrian Succession.A subaltern officer, he was with the Prince William, Duke of Cumberland and his army as it marched through Scotland against Charles Stuart's Jacobite rising at the Battle of Culloden in 1746.