Montgomery Burnett wrote an offical book on the family of Burnett’s of Barns (you can download a digital copy if you google it) and in there it states that William Burnett, esq, was buried in Saint Gorgone’s Kirk of Manor, (alongside other Burnett’s of Barns family). I can’t see any documents here suggesting this information is correct - does anybody have it, or does this page suggesting his was burial at Leeds actually a mistake?
Also, in the book, there is no son, John of Lweisham listed, and later Ralph is also absent.
Incidentally, the Burnett’s of Barns and the Burnett’s of Leys are two different lines. The Burnett coat of arms used here is of the Burnett’s of Leys ... the Burnett’s of Barns do not use the horn on theirs as this is a distinctly Leys family item.