In 1776, at the age of twelve, Latrobe was sent away to a Moravian School at Niesky in Upper Lusatia, near the border of the German principalities of Saxony and Prussia, where his brother was studying. At age eighteen, he spent several months traveling around Germany, and then joined the Royal Prussian Army, becoming close friends with a distinguished officer in the United States Army. Latrobe also may have served briefly in the Austrian Imperial Army, and suffered some injuries or illness. After recovering, he embarked on a continental "Grand Tour", visiting eastern Saxony, Paris, Italy, and other places. Through his education and travels, Latrobe mastered German, French, ancient and modern Greek, and Latin. He had advanced ability in Italian and Spanish and some knowledge of Hebrew. Latrobe was elected a member of the American Antiquarian Society in 1815.