Will – Mutual wills. The Chancery Division, in allowing the claimants' claim, held that wills made by the testatrix (Mrs C) and her husband (Mr C) in 2000 were mutual wills, engaging the said doctrine. Accordingly, given that Mr C had died without having changed his will, and without having received notice from Mrs C that she had changed hers, Mrs C's estate had to be held by her personal representatives on trust to give effect to the will that she had made in 2000, and not as set out in her later will made in 2014.