In the fall of 978, Paris was besieged by the Emperor Otto II during the Franco-German war of 978–980. At the end of the 10th century, a new dynasty of kings, the Capetians, founded by Hugh Capet in 987, came to power. Though they spent little time in the city, they restored the royal palace on the Île de la Cité and built a church where the Sainte-Chapelle stands today. Prosperity returned gradually to the city and the Right Bank began to be populated. On the Left Bank, the Capetians founded an important monastery: the Abbey of Saint-Germain-des-Prés. Its church was rebuilt in the 11th century. The monastery owed its fame to its scholarship and illuminated manuscripts.