I am glad to find Mr. Montague's motion has been rejected, as it will keep many worthy men in good humour; besides, the abolition of the day would not be very delicate.
Source, in full
Letter to Lord North on Frederick Montagu's Bill to repeal the annual observance of the execution of Charles I (2 March 1772), quoted in The Correspondence of King George the Third with Lord North, From 1768 to 1783, Vol. I, ed. W. Bodham Donne (1867), p. 94