Mr and Mrs Korsgaard, married in community of property, executed a mutual will in 1983 bequeathing their estate ultimately to their granddaughter, Diane Jean Theart. Mrs Korsgaard died in 1990. The original mutual will could not be found, though an authenticated copy existed. After her death, Mr Korsgaard executed several later wills (2005–2008) leaving the entire estate, including the immovable property at 19 Dysart Road, Green Point, to his nephew, Jan Willy Sundby. After Mr Korsgaard’s death in 2008, the executor prepared a liquidation and distribution account in terms of the later will. The appellant objected, contending that the mutual will was valid, had not been revoked, and governed the devolution of the property, either wholly or at least to the extent of the testatrix’s half share.