"Mediæval London, Volume 2: Ecclesiastical" by Walter Besant is a historical account written in the early 20th century. This volume explores the religious and ecclesiastical aspects of London during the medieval period, examining the governance, social customs, and spiritual life of the city. The primary focus is on how the Church and its institutions shaped the fabric of London society. The opening of the book provides insight into the archival richness of London's history, emphasizing the significance of the Guildhall's ancient records. Besant mentions the various historical documents that serve as the foundation for understanding the city's governance and ecclesiastical structure. In this section, he discusses the notable archives consulted by early historians and the evolution of civic governance as London transitioned towards a communal form of governance under the Plantagenet kings. This sets the stage for an exploration of the intricate relationship between the city and its ecclesiastical authorities in subsequent chapters. (This is an automatically generated summary.)