Empress Matilda married the forthcoming Holy Roman Emperor.
Empress Matilda . The daughter of King Henry I of England , she moved to Germany as a child when she married the future Holy Roman Emperor Henry V . Leopold I ( name in full : Leopold Ignaz Joseph Balthasar Felician ; I. Lipót 9 June 1640 -- 5 May 1705 ) was Holy Roman Emperor , King of Hungary and Croatia , King of Bohemia and King of Serbia .