In 1932 Princess Marina and Prince George (later the Duke of Kent), a second cousin through Christian IX of Denmark, met in London. Their betrothal was announced in August 1934. Prince George was created Duke of Kent on 9 October 1934. Marina's engagement ring was made out of a "square-cut Kashmir sapphire set in platinum with a baton diamond on either side". On 29 November 1934, they married at Westminster Abbey, London. The wedding was a grand affair, as it had been more than ten years since the last royal wedding with Prince Albert, Duke of York, and Lady Elizabeth Bowes-Lyon. The wedding of Prince George and Princess Marina was the first royal wedding ceremony to be broadcast by wireless, and with the use of other technology, such as microphones—the control room was located underneath the Unknown Warrior's tomb of Westminster Abbey. The service was broadcast locally and abroad to other nations, and loudspeakers allowed spectators from outside the Abbey to hear the proceedings. The wedding was followed by a Greek ceremony in the private chapel at Buckingham Palace, which was converted into an Orthodox chapel for the ceremony. This was the first time this had been done since the wedding of Princess Marina's great-aunt, Grand Duchess Maria Alexandrovna of Russia to Prince Alfred, Duke of Edinburgh, during the reign of Queen Victoria. The wedding was the most recent occasion on which a foreign-born princess married into the British Royal Family.