And be it declared, That it shall be lawful for Her Majesty, or for any Persons acting under the Authority of Her Majesty, during the Minority of His said Royal Highness, to exercise, in the Name and on the Behalf of His said Royal Highness, all the Rights and Powers given to or which might be exercised by His said Royal Highness under or by virtue of this Act; and that all Acts, Matters, and Things which shall be done during such Minority, under and by virtue of this Act, in the Name and on the Behalf of His said Royal Highness, by Her Majesty, or any Persons acting under the Authority of Her Majesty, in pursuance of and in conformity with the Powers and Authorities to them in that Behalf committed by Her Majesty, shall be good, valid, and effectual in Law as if the same had been done by His said Royal Highness in His own Person and at His full and perfect Age.