Princess Margaret's only daughter, Lady Sarah Chatto, has given birth to a son, who becomes 14th in line to the British throne.
The 7-pound, 12-ounce boy, born Sunday, has not yet been named.He is the first child for 32-year-old Lady Sarah, who married fellow artist Daniel Chatto in 1994, and the first grandchild for Margaret.
Margaret, the younger sister of Queen Elizabeth II, is divorced from Lady Sarah's father, photographer Lord Snowdon.