In this task, you are given a context, a subject, a relation, and many options. Based on the context, from the options select the object entity that has the given relation with the subject. Answer with text (not indexes).
Q: Context: Princess Marie of Hanover ( German : Marie Ernestine Josephine Adolphine Henrietta Theresa Elizabeth Alexandrina Prinzessin von Hannover und Cumberland ; 2 December 1849 -- 4 June 1904 ) was the younger daughter of King George V of Hanover and of his wife , Princess Marie of Saxe - Altenburg ., George III (George William Frederick; 4 June 1738  29 January 1820) was King of Great Britain and Ireland from 25 October 1760 until the union of the two countries on 1 January 1801, after which he was King of the United Kingdom of Great Britain and Ireland until his death. He was concurrently Duke and prince-elector of Brunswick-Lüneburg ("Hanover") in the Holy Roman Empire until his promotion to King of Hanover on 12 October 1814. He was the third British monarch of the House of Hanover, but unlike his two predecessors he was born in Britain, spoke English as his first language, and never visited Hanover., Princess Marie of Saxe-Altenburg, VA (Alexandrina Mary Wilhelmina Catherine Charlotte Theresa Henrietta Louise Pauline Elizabeth Frederica Georgina 14 April 1818  9 January 1907) was Queen of Hanover and the consort of George V, a grandson of George III of the United Kingdom and Queen Charlotte., Subject: princess marie of hanover, Relation: noble_family, Options: (A) grandson (B) house of hanover
A:
house of hanover