The title of Earl of Shannon was created in the Peerage of Ireland in 1756. The Earl bears the subsidiary titles of Viscount Boyle of Bandon (1756) and Baron Castle Martyr (1756) in the Peerage of Ireland, and until 1999 sat in the House of Lords as Baron Carleton (1786) in the Peerage of Great Britain. The Peerage of Ireland is the term used for those peers created by British monarchs in their capacity as Lord or King of Ireland. ... 1756 was a leap year starting on Thursday (see link for calendar). ... 1756 was a leap year starting on Thursday (see link for calendar). ... 1756 was a leap year starting on Thursday (see link for calendar). ... Jump to: navigation, search 1999(MCMXCIX) is a common year starting on Friday Anno Domini (or the Current Era), and was designated the International Year of Older Persons by the United Nations. ... Jump to: navigation, search This article is about the British House of Lords. ... Jump to: navigation, search 1786 was a common year starting on Sunday (see link for calendar). ... The Peerage of Great Britain comprises all extant peerages created in the Kingdom of Great Britain after the Act of Union 1707 but before the Act of Union 1800. ...
It is unusual, especially for a castle of the time, because it had no keep or central stronghold, but merely a strong curtain wall defended by projecting towers which enclosed the domestic buildings.
This Castle is said to have been founded by Raedwald, one of the most powerful kings of the East Angles, between A.D. 599 and 624.
William the Conqueror and his son Rufus retained the Castle in their own possession; but the third son of William, Henry I., granted it, with the Manor of Framlingham, to Roger Bigod, 1st Earl of Norfolk.