http://www.nndb.com/people/159/000102850/
... [Samuel Butler, author of Hudibras, his] third sojourn, with Sir Samuel Luke at Cople Hoo, Bedfordshire, was not only apparently the longest, but also much the most important in its effects on his career and works. We are nowhere informed in what capacity Butler served Sir Samuel Luke, or how he came to reside in the house of a noted Puritan and Parliament man. In the family of this "valiant Mamaluke", who, whether he was or was not the original of Hudibras, was certainly a rigid Presbyterian, "a colonel in the army of the Parliament, scoutmaster-general for Bedfordshire and governor of Newport Pagnell", Butler must have had the most abundant opportunities of studying from the life those who were to be the victims of his satire; ...