Her daughter, Daphne, was born in 1969 when Ruth was nineteenyearsold, the second or third of her children their birth order was never made clear to me by anyone in the family.
No other princess was so honoured until 1727, when the Hanoverian King George II of England styled his daughter Anne who also became a princess of Orange and lived until 1759 Princess Royal, when she was nineteenyearsold.