This was due to a monetary disagreement that led to Michelangelo having the statue brought privately to the Mouscrons in Bruges instead  and in 1514 it was donated to its present home. The sculpture was a memorial to the Mouscron parents, "...which would include a 'sumptuous tabernacle' that would hold an 'excellent' sculpture of the Virgin that is 'very precious' and 'costly'..." No alterations are allowed to be made to the Madonna without proper permission. While Michelangelo was alive, the Madonna was the only sculpture to be taken out of Italy.
This was due to a financial dispute that led to Michelangelo having the statue brought privately to the Mouscrons in Bruges instead, and in 1514 it was donated to its present location. The sculpture served as a memorial to the Mouscron parents, "...which would include a 'sumptuous tabernacle' that would hold an 'excellent' sculpture of the Virgin that is 'very precious' and 'costly'..." No modifications are allowed to be made to the Madonna without proper authorization. During Michelangelo's lifetime, the Madonna was the only sculpture to be removed from Italy.