The House of Hanover (or the Hanoverians) is a German royal dynasty that ruled the Electorate and then the Kingdom of Hanover, and then also provided monarchs of Great Britain and Ireland from 1714 to 1800 and ruled the United Kingdom of Great Britain and Ireland from its creation in 1801 until the death of Queen Victoria in 1901. Upon Victoria’s death, the British throne passed to her eldest son Edward VII, a member of the House of Saxe-Coburg and Gotha (i.e. Wettin) through his father (Prince Albert).
The House of Hanover was formally named the House of Brunswick-Lüneburg, Hanover line, as it was originally a cadet branch of the House of Brunswick-Lüneburg. The senior branch became extinct in 1884, and the House of Hanover is now the only surviving branch of the House of Welf, which is the senior branch of the House of Este.
Refer Chapter 10.8 of The King’s Son (The Evidence) for details on my analysis relating to the HANOVER House YDNA Haplogroup.