"1657". British Civil Wars. Commonwealth and Protectorate 1638-60. June 7, 2010. Archived from the original on May 9, 2008. Retrieved February 17, 2012.
"1657". British Civil Wars. Commonwealth and Protectorate 1638-60. June 7, 2010. Archived from the original on May 9, 2008. Retrieved February 17, 2012.