honorific_prefix caption death_date children birth_name parents birth_date spouse image article_title name
the right honourable mary , countess of bute , in 1780 6 november 1794 mary 1st marquess of bute anne percy , duchess of northumberland lowther james archibald stuart jane macartney , countess of macartney charles , stuart william stuart caroline dawson , countess of portarlington lady countess louisa stuart of lonsdale john stuart , mary wortley montagu sir edward wortley montagu lady mary wortley montagu 19 january 1718 john stuart , 3rd earl of bute mary , after sir joshua reynolds.jpg stuart -lrb- 1718-1794 -rrb- , countess of bute mary stuart , countess of bute
 the countess of bute
mary stuart , countess of bute

mary stuart , countess of bute , 1st baroness mount stuart -lrb- 19 january 1718 -- 6 november 1794 -rrb- was the wife of john stuart , 3rd earl of bute , who was prime minister of great britain between 1762 and 1763 .
