Violet Lindsay spend thirty years sculpting the base of the monument, possibly also the effigy too although it is so fine as to probably be the work of a professional such as Alfred Gilbert (who was summoned to take the death mask), possibly George Frampton whose monument to Lady Isabel Wilson in St James Church, Warter is of a similar quality.
The arms on the base of the monument represent the Manners and Lindsay descent.
The Manners arms originally Or, two bars azure, meaning Gold (Yellow) background with two blue (azure) horizontal bars.
Henry VIII allowed the augmentation of the arms with the arms of England in chief (meaning at the top) reflecting the descent from Edward III as a result of George Manners, 11th Baron Ros Helmsley, having married Anne St Leger whose mother was Anne of York (elder sister of Edward IV and Richard III) whose father was Richard 3rd Duke York whose father was Richard of Conisburgh, 1st Earl Cambridge, whose father was Edmund of Langley, 1st Duke of York, whose was the son of Edward III.
Other arms include:
Charlton. John Manners, 4th Earl Rutland, married Elizabeth Charlton.
Photos less than ideal since I wasn’t carrying my usual camera; these taken with a phone.