A wide range of possible monuments was put forward .
It was Sir Francis Leggatt Chantrey , with whom Loch , the Duke 's Chief Agent , had been in touch , who recommended Sir Charles Barry for the design of the monument .
A wide range of possible monuments was put forward but it was Sir Francis Leggatt Chantrey , with whom Loch , the Duke 's Chief Agent , had been in touch , who recommended Sir Charles Barry for the design of the monument .