or Chris·tine de Pi·san C5346450 (krēs-tēn′ də pē-zäN) c. 1364-c. 1431. French writer noted for her numerous poems of courtly love, a biography of Charles V of France (1404), and several polemical works in defense of womankind, such as Le Livre de la cité des dames (1405).EncyclopediaSeeChristine de Pisan