Simplify the following text for a Grade 10 native English-speaking person.
Original: In March 2004 Robert Dyas was bought by Change Capital Partners , a private equity firm headed by former Marks & Spencer chairman Luc Vandevelde .
Simplified: It was taken over in 2004 by Change Capital , headed by former Marks and Spencer chairman Luc Vandevelde and former M&S CEO and head of B&Q Roger Holmes .