Simplify the following text for a Grade 7 native English-speaking person.
Original: In the course of 1628 he discovered that his wife , Kirsten Munk , was having a relationship with one of his German officers ; and when he put her away she endeavored to cover up her own disgrace by conniving at an intrigue between Vibeke Kruse , one of her discharged maids , and the king .
Simplified: In the course of 1628 he discovered an affair of his wife , Kirsten Munk , with one of his German officers . When he put her away she tried to cover up her own disgrace by suggesting an affair between one of her fired maids and the king .