Book excerpt: The princes étrangers were an influential group of courtiers in early modern France, none more so than the princes from the Lorraine-Guise family. This book examines the Lorraine-Guise at the court of Louis XIV and their renewed power, wealth and influence after the turbulent Wars of Religion. It is a substantial contribution to scholarship in court studies and will add greatly to debates on the nature of crown-noble relations in the era of absolutism.