Simplify the following text for a Grade 5 native English-speaking person.
Original: Titania tells Oberon that she plans to stay there until after she has attended Theseus and Hippolyta 's wedding . Oberon and Titania are estranged because Titania refuses to give her Indian changeling to Oberon for use as his `` knight '' or `` henchman , '' since the child 's mother was one of Titania 's worshipers .
Simplified: Titania - Queen of the fairies , and Oberon 's wife .