Question:  Princess Alexandra of Hanover is the only child of the Duke of what areas?
Sentence (from "Prince Ernst August of Hanover (born 1954)"): Ernst August, Prince of Hanover, Duke of Brunswick and Lüneburg ("Ernst August Albert Paul Otto Rupprecht Oskar Berthold Friedrich-Ferdinand Christian-Ludwig Prinz von Hannover Herzog zu Braunschweig und Lüneburg Königlicher Prinz von Großbritannien und Irland"; born 26 February 1954) is head of the deposed royal House of Hanover which held the thrones of the United Kingdom until 1901, of the former Kingdom of Hanover until 1866 and of the sovereign Duchy of Brunswick (1913 to 1918).
Relevant evidence: Yes