Well I love art history but I was commission to do a family crest . De la Seda was the last name and I took a great stretch and tried to link to the family history. It is one of the most famous paintings ("Madonna de la Seda") in Lucca's main church of St. Michael. It means Madonna of the seat or chair. If you look carefully at the Madonna the back rail is present. Also the painting was done by Raphel and there is also no link to a commission by this family.

Sadly not ! I am sorry I only saw yoru question now, woudl love to know anything about it if you found out more.