Simplify the following text for a Grade 10 native English-speaking person.
Original: Following several changes of aristocratic ownership , it came into the hands of the House of Wettin in 1353 from the House of Henneberg with the marriage of Friedrich III , the Strong , with Katherina von Henneberg and was initially regarded by them as a Saxon outpost within Franconia .
Simplified: Following several changes of noble owners , it came into the hands of the House of Wettin in 1353 when Friedrich III , the Strong , married Katherina von Henneberg .