The Dissolution of the Monasteries did not affect the running of Barts as a hospital, but left it in a precarious position by removing its income. It was refounded by King Henry VIII in December 1546, on the signing of an agreement granting the hospital to the Corporation of London, which was reaffirmed by Letters Patent of January 1547 endowing it with properties and income entitlements. The hospital became legally styled as the "House of the Poore in West Smithfield in the suburbs of the City of London of Henry VIII's Foundation", although the title was never used by the general public.
So Barts is not named after Bart Simpson but Barts - the oldest Medical Establishment in Europe and you don't get better info for branding than that.
P.S. It also fools Google + as a name (Bart MSblog) so we can have blog email that works on Google+ BartsMSBlog@gmail.com....Mousedoctor is blocked bo-Ho:-)
Entrance to the Hospital through King Henry VIII gate built in 1752.