Simplify the following text for a Grade 10 native English-speaking person.
Original: Princess Mary Adelaide Wilhelmina Elizabeth of Cambridge ( 27 November 1833 -- 27 October 1897 ) was a member of the British Royal Family , a granddaughter of George III .
Simplified: Princess Mary Adelaide Wilhelmina Elizabeth of Cambridge ( 27 November 1833 - 27 October 1897 ) was a granddaughter of George III of the United Kingdom .