Thomas Coutts left all his property to his wife. His personal estate was valued at just under £600,000, but "as his own personal stocks and shares and his interest in the stocks and shares held by the bank were mingled, and it would be difficult for others than his partners to distinguish which was the bank's property and which was his own, he named as special trustees of such stocks and shares his partners, Sir Edmund Antrobus, Mr Coutts Trotter, Mr Edward Marjoribanks, and Mr Edmund Antrobus, and he appointed them executors, together with William Adam the younger, of Lincoln's Inn, Andrew Dickie, of the Strand, and Thomas Atkinson and John Parkinson, both of Lincoln's Inn Fields." Harriot, Duchess of St Albans, widow of Thomas Coutts, made her will on March 14, 1837, six months before her decease, her executors being Sir Coutts Trotter, Edward Marjoribanks, Sir Edmund Antrobus, and William Matthew Coulthurst, all of the Strand, with William George Adam, Accountant-General of the High Court of Chancery, and John Parkinson, of Lincoln's Inn Fields. She bequeathed to her husband the use and enjoyment during his life of Holly Lodge, Highgate (which Mr Coutts had bought for her at a cost of £25,000), the use and enjoyment of rooms in the Strand, a legacy of £10,000 for furniture, a selection of plate, not exceeding in value £2000, and an annuity of £10,000; but the annuity and the use and enjoyment of Holly Lodge were to cease if he should permit his uncle, Lord Amilius Beauclerk, or his brothers, Frederick or Charles Beauclerk, to reside in these quarters for one week or more in any one year. She left her jewellery to Angela Georgina Burdett--subsequently the Baroness Burdett-Coutts--and she also gave, devised, and bequeathed all her real and personal estate, including her shares and interest of and in the banking-house and business in the Strand, in trust to pay the income thereof to the said Angela Georgina Burdett until she should marry or die, which should first happen, and after such marriage to pay the same to her for her own sole and separate use and benefit during the then residue of her life.