It's one of those tired old cliches — a product, perhaps, of a society that looks for discord among women — that too often proves true.
The shadow of the mother-in-law looming large over her son's wife, as they build a life together, start a family. The power in that relationship, the fear of never measuring up.
So spare a thought for Catherine, the new Princess of Wales, living in the shadow of Diana, the "People's Princess", her husband's late adored mother whom she'd never met.
