Flower query ID please

Any Crane's Bill I have seen and have growing here are blue and not very large, so have got slightly confused as to which this might be. Very large flowers 3 - 4cm across centre (bumble bee shows sort of size). Pale pink with darker pink markings on the petals. It almost looked like a large shrub as the two lots were growing seperately on a grassy slope were in compact clumps.