sumptuary

Relating to expenditure or expense, especially on luxury goods.

Among the trade goods mentioned are not only luxury items but also food produce, which contradicts the idea of exclusively sumptuary trade. Quite possibly these northern lords maintained sporadic trade with Guayaquil in pre-Hispanic times.

Chiefly in sumptuary law: of a law, regulation, etc.: intended to limit or restrain the expenditure of citizens in apparel, food, furniture, etc., or to forbid the use of certain articles (especially luxurious ones), to regulate the prices

Some vvill vvonder, that Empſon and Dudley (the Royal Promoters then in prime) did not catch him [Nicholas Vaux, 1st Baron Vaux of Harrowden] by the Collar, or pick an hole in his Govvn, upon the breach of ſome ruſty ſumptuary Statute; the rather, becauſe lately the Earl of Oxford vvas heavily fined for ſupernumerous attendance.

When Sunday came, it was indeed a day of finery, which all my ſumptuary edicts could not reſtrain. How well ſo ever I fancied my lectures againſt pride had conquered the vanity of my daughters; yet I ſtill found them ſecretly attached to all their former finery: […]

Of or relating to sumptuary laws or regulations.