Further to my post yesterday about an Unidentified Hatchment, I wish to thank Michael Andrews-Reading and Richard Litchten who have found a possible identification:
On 15th June 1811, William Watkins of Badby House married Charlotte Rattray at Holy Trinity, Coventry. William predeceased his wife, dying on 16th July 1845, hence the dexter side of the hatchment has a black background. Charlotte died 9th January 1851.
Arms: Azure on a fess Gules between three leopards’ faces jessant-de-lys as many mullets of six points Or (for Watkins)
impaling
Azure a fess Argent between six crosses crosslet fitchy [couped] Or (for Rattray)
Crest: A griffin’s erased head Or
Motto: In Portu Quies
There does seem to be some confusion over the Watkins’ fess. Papworth’s Ordinary has the fess as Argent and Burke’s General Armory has it as vair.

Burke’s Landed Gentry 1879