The Leineschloss, situated on the Leine in Hanover, Germany, is the former residence of the Hanoverian dukes, electors and kings. Currently it is the seat of the Landtag of Lower Saxony.
The first building on the site was a Franciscan friary, constructed in about 1300, which was abandoned in 1533 after the Protestant Reformation. In 1636, George, Duke of Brunswick-Lüneburg, began construction of a rather small late renaissance palace on the site as his residence. Elector Ernest Augustus had it enlarged and modernized and added a theatre in the late 17th century. In 1742 the north-west wing was renewed. Between 1816 and 1844, the architect Georg Ludwig Friedrich Laves fully re-built the palace. The column portico with six Corinthian columns was built during this period.
More information at landtag-niedersachsen.de http://www.landtag-niedersachsen.de/leineschloss_geschichte/
Address Hannah-Arendt-Platz 1, 30159 Hannover, DE
Coordinates 52°22'13.679" N 9°43'59.156" E