In B v Erinvale, the Royal Court intervened to set aside a decision of the trustee not to make the spouse of the settlor a beneficiary in her own right. The court's decision has implications for trustees and their obligation to act reasonably despite the trustee setting out reasons for its original decision. Summary This case concerned an application made by B under Article 51 of the Trusts (Jersey) Law 1984 to be added as a beneficiary of the A Settlement in her own right. B was already a beneficiary of the A Settlement in her capacity as the spouse of the settlor. However, the settlor was in ill health and had issued divorce proceedings, such that B had become concerned about her status as a beneficiary. The trustee had previously resolved not to add B as a beneficiary in her own right and had set out its reasons for not doing so in a detailed minute. However, the Royal Court found that despite the detailed and carefully considered minute, the decision ultimately reached by the trustee not to add B as a beneficiary in her own right was one which no reasonable trustee would have made. The Royal Court therefore intervened in order to set that decision aside.