William, 11th Baron Willoughby de Eresby

The Willoughby family were from Grimsthorpe Castle with their lineage being traced back to the Norman Conquest of 1066. They were also noted for their support for the protestant faith during the Reformation. Their family burials are at the Willoughby Chapel, St. James Church, Spilsby, Lincolnshire. It is one of the churches with best preserved medieval burials in England.

http://genealogics.org/getperson.php?personID=I00109022&tree=LEO

The historic peerage of England: exhibiting, under alphabetical arrangement ... By Sir Nicholas Harris Nicolas, William Courthope Pg.511

http://books.google.com/books?id=5HwaAAAAYAAJ&pg=PA503&lpg=PA503&dq...

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Courtier during the reign of Henry VIII

https://en.wikipedia.org/wiki/William_Willoughby,_11th_Baron_Willou...

https://en.wikipedia.org/wiki/Grimsthorpe_Castle#The_Tudor_period