In his book "London and the Kingdom - Volume 3: A History Derived Chiefly from the Archives at the Guildhall under the City of London Corporation", Reginald R. Sharp explores the important historical events connected with the city of London in medieval times. With the help of archival materials preserved in the Guildhall, the author reveals the secrets of the past, telling about the political and social changes that took place in London and in the kingdom. Sharpe's professional approach to historical research, combined with a careful study of documents, makes this book indispensable for anyone interested in the history of the English capital and the events of the past.