Simplify the following text for a Grade 11 native English-speaking person.
Original: Through Prince Paul , Johnson is a descendent of King George II of Great Britain and through George 's great-great-great grandfather King James I of England , a descendent of all the previous British royal houses .
Simplified: Through Prince Paul , Johnson is a descendant of King George II , and through George 's great-great-great grandfather James I\/VI , a descendant of all of the previous British royal houses .