Attie and Lettie Williams were married in community of property and executed a joint (mutual) will dealing with rights to residential property in Pniël. Upon Attie’s death, his half shares in two subdivided erven were distributed in accordance with the will, while Lettie retained half shares in both. Before her death, Lettie bequeathed her half share in one erf (later erf 171 and its subdivisions, erven 383 and 411) to her son from a previous marriage, Charles Stubbs, whose rights devolved on his widow, the respondent. Despite this, the Pniël Transitional Council erroneously allocated sole occupational rights over the whole erf to Ethyl Robyn, Attie’s daughter, who later purported to transfer full rights in the subdivisions to her son and son-in-law (the appellant). The dispute concerned whether Lettie had the legal capacity to dispose of her half share, which depended entirely on whether the joint will effected a merger (boedelsamesmelting) of the spouses’ estates.