What is House of Lorraine?
[[File:Coat of arms of the House of Lorraine.png|thumb|right|The arms of the house of Lorraine.]] The '''House of Lorraine''' was a family who ruled the '''[[Duchy of Lorraine]]''' in modern day [[France]]. They later ruled the [[Grand Duchy of Tuscany]]. [[Empress Maria Theresa|Empress Maria Theresa of Austria]] was married to a [[Francis I, Holy Roman Emperor|Duke of Lorraine]]. Thus joined the house of Lorraine with the [[House of Habsburg]]. The House of Habsburg was very powerful. The House of Lorraine, the main and now only remaining line known as Habsburg-Lorraine, is one of the most important and was one of the longest-reigning [[Royal house|royal houses]] in the history of Europe. Currently the house is headed by Karl Habsburg-Lothringen, the [[titular]] [[Emperor of Austria]], [[King of Hungary]], Bohemia, Galicia and Lodomeria, Croatia, Illyria, as well as the titular [[King of Jerusalem]]. [[Category:House of Lorraine| ]]