The late Abraham Gerhardus Geldenhuys (the testator) executed a will on 27 November 1990 bequeathing two farms (Hunites and Holte) to his spouse, Alberta Johanna Geldenhuys (Mrs Geldenhuys), subject to testamentary conditions. The conditions gave the spouse of his daughter, Gert Johannes Scheepers Goosen (first appellant), a first option to purchase the farms at fixed prices (R20 per morgen for Hunites and R30 per morgen for Holte) either: (a) during Mrs Geldenhuys' lifetime if she intended to sell (clause 2.1), or (b) upon her death (clause 2.3). The testator died on 26 May 1997 and the farms were transferred to Mrs Geldenhuys subject to the testamentary conditions. In June 2000, Mrs Geldenhuys sold and transferred the farm Holte to the first appellant in accordance with clause 2.1. Mrs Geldenhuys died on 5 December 2017. On 24 January 2017, within three months of her death, the first appellant exercised his option to purchase the farm Hunites and on 30 March 2017 the executrix entered into a written sale agreement with him for R176,200 (R20 per morgen). The first respondent (one of the testator's daughters) challenged the sale, arguing the purchase price was a fraction of the market value (approximately R5.2 million) and that the option was null and void for non-compliance with the formalities prescribed by the Alienation of Land Act 68 of 1981, as it had not been signed by the first appellant.