On 12 May the Queen created him Duke of Orkney and Marquess of Fife, and on 15 May they were married in the Great Hall at Holyrood, according to Protestant rites officiated by Adam Bothwell, Bishop of Orkney.
Pada tanggal 12 Mei Ratu menjadikannya Adipati Orkney dan Markis Fife, dan pada tanggal 15 Mei mereka menikah di Aula Besar di Holyrood, menurut ritus Protestan yang diresmikan oleh Adam Bothwell, Uskup Orkney.