Although Markle attended a private Catholic school in her early years, she did not identify as Roman Catholic.[16] On 6 March 2018, she was baptised and confirmed into the Church of England by the Archbishop of Canterbury Justin Welby at St. James's Palace.[17] The Church no longer denies marriage to divorced persons with a living spouse.[18][19] After the engagement, Markle began the years-long process of becoming a British citizen.[20] She will retain her U.S. citizenship during the process,[21] but Kensington Palace have indicated that the decision on whether she will retain dual nationality has not yet been made.[20] The couple was invited to celebrate Christmas 2017 with the royal family at the Queen's Sandringham estate.[22] The official engagement photographs were taken by Alexi Lubomirski, a former assistant to Mario Testino, at Frogmore House, and were issued by Kensington Palace on 21 December 2017.[23]