The serial entrepreneur's new beauty brand is based around the lifestyle and artisans of Provence.
The debut collection for fall 2017 retailing will be produced and distributed by CWF.
She replaces Judy Collinson; fashion director Julie Gilhart also departs.
Stella McCartney and her husband, Alasdhair Willis, have welcomed the latest addition to their family — a baby girl.
Group says settlement reached on Unilever acquisition.
The retailer and holding company I.T Limited will be 50-50 partners.