WI Mary Stewart awarded "Crown Matrimonial" to her husband?

In 19 June 1566 Mary Queen of Scots gave birth to a son named James...
Henry Stewart Lord Darnley and Mary became closer to reconciliation after his birth but in late 1566 she became frustrated by his continuous insistense (sic) to be awarded a "Matrimonial Crown"...
In OTL Mary refused that and eventually Darnley end up dead...
WI Mary had granted him the "Matrimonial Crown"? What is the Nobles reactions? How is that changing History? Any thoughts?
 
Lord Darnley related to Mary Stewart at least 3 times... so he had a claim of his own to the throne... If James Stewart wasnt born and Mary died before him he would have been a strong claimant...
 
Top