Marriage
Worsley met Prince Edward, Duke of Kent, the eldest son of Prince George, Duke of Kent, and Princess Marina of Greece and Denmark, while he was based at Catterick Garrison. Princess Marina reportedly disapproved of her son's choice of bride and twice forbade the match before agreeing to the marriage in 1961. On 8 June 1961, the couple married at York Minster, the first royal marriage in that location in 633 years (the last one being between Edward III and Philippa of Hainault). The bride's father escorted her, and the best man was Edward's brother Prince Michael of Kent. Princess Anne was one of the bridesmaids. The Archbishop of York, Michael Ramsey, officiated the marriage service. Guests included actors Noël Coward and Douglas Fairbanks Jr. as well as members of the British, Greek, Danish, Norwegian, Yugoslavian, Romanian, and Spanish royal families. Her white silk gauze dress was designed by John Cavanagh, used 273 yards (250 m) of fabric and had "a high neckline and long sleeves and a commanding train". The Kent Diamond and Pearl Fringe Tiara secured her veil.
They had three living children:
George, Earl of St Andrews, born 26 June 1962 at Coppins; married Sylvana Tomaselli
Lady Helen Taylor, born 28 April 1964 at Coppins; married Timothy Taylor
Lord Nicholas Windsor, born 25 July 1970 at King's College Hospital in London; married, 2006, Paola Doimi de Lupis de Frankopan
Katharine had a miscarriage in 1975 owing to rubella and gave birth to a stillborn son, Patrick, in 1977; this loss sent her into a severe depression which she spoke about publicly. "It had the most devastating effect on me", she told The Daily Telegraph in 1997. "I had no idea how devastating such a thing could be to any woman. It has made me extremely understanding of others who suffer a stillbirth."
She moved to the married quarters in Hong Kong and Germany while her husband was serving with the Royal Scots Greys. The couple later took numerous royal engagements on behalf of the Queen, including the Ugandan independence celebrations and the coronation of the King of Tonga.
At the time of her death, Katharine and her husband lived at Wren House, Kensington Palace, in London. After their 1961 wedding, she and Edward moved into Coppins, where they lived until 1972. In the early 1970s, they moved to York House at St James's Palace before moving to Wren House at Kensington Palace in 1997. From 1972 to 1990, they leased Anmer Hall in Norfolk, part of the Sandringham Estate. They subsequently purchased Crocker End House in December 1989 before selling it the early 2000s. In 2002, Katharine purchased the Old Forge in Brightwell Baldwin and sold it in 2017.