Definition: In context, this line refers to a "confidential" document used in secret communications within the Church of England during the reigns of Edward I and Oliver Cromwell. The full definition can vary depending on context and scholarly sources. This might include something like: - Confidential: Unofficial or classified documents kept by church officials that are not commonly known. - "Confidential": Private, unmarked documents used for confidential purposes within a church hierarchy. So in simple terms, it could refer to secret communications between church leaders during a time of political unrest and revolution.