Season 3 of The Crown chose not to prominently feature Princess Margaret's children, but the queen's sister indeed welcomed a son and a daughter with her husband, Antony Armstrong-Jones.

The couple's firstborn child is David Armstrong-Jones, also known as Viscount Linley, who arrived on November 3, 1961. Their second child, a daughter named Lady Sarah Armstrong-Jones, was born on May 1, 1964.

Here's everything to know about Princess Margaret and Lord Snowdon's children.

David Armstrong-Jones is inspired by his father.

Viscount Linley married Serena Stanhope on October 8, 1993, at St. Margaret's Church in Westminster. The couple welcomed two children together: Charles Armstrong-Jones, Viscount Linley, on July 1, 1999, and Lady Margarita Armstrong-Jones on May 14, 2002.

Royals Attend Christmas Day Service At Sandringham
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Viscount and Viscountess Linley with their children, Charles Armstrong-Jones (also Viscount Linley) and Lady Margarita Armstrong-Jones.

Having established a successful furniture design shop in Dorking, Viscount Linley went on to found David Linley Furniture Limited, which is now simply known as Linley, per Town & Country. Apparently, the company caters to a wide range of celebrity clientele, including Elton John and Valentino, according to Vanity Fair.

In an interview with The Telegraph, Viscount Linley revealed, "I inherited my love of design from my father, the Earl of Snowdon, who was always fascinated by pushing the boundaries of an object—working out how to make it touch the ground in two places rather than three." He continued, "I was pretty bad at making things as a child, but he was an excellent teacher."

Viscount Linley was given the title 2nd Earl of Snowdon when his father died in 2017.

Princess Margaret And Lord Linley
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Princess Margaret and David Armstrong-Jones in Kensington Gardens, London, in 1968.

Lady Sarah Chatto is an award-winning artist.

Lady Sarah Armstrong-Jones married actor and artist Daniel Chatto on July 14, 1994. The wedding took place at St. Stephen Walbrook in London, and according to Hello! magazine, "The couple shunned a lavish royal wedding in favour of a low-key service."

Bride Sarah Armstrong-Jones daughter of Britain's
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Daniel Chatto and Sarah Armstrong-Jones on their wedding day.

The Chattos have two sons: Samuel David Benedict Chatto, who was born on July 28, 1996, and Arthur Robert Nathaniel Chatto, born on February 5, 1999. Royal fans will likely remember Arthur as the royal shirtless selfie wonder, who was formerly a page boy to the queen.

Sarah is a talented artist who has won several awards for her paintings and regularly exhibits her work at The Redfern Gallery in London. She is the vice president of the Royal Ballet.

"Christian Dior: Designer of Dreams" Exhibition At The V&A - Opening Gala Dinner
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Lady Sarah and Daniel Chatto at the opening of the Christian Dior: Designer of Dreams exhibition in London on January 29, 2019.

Princess Margaret's daughter reportedly remains very close with her aunt, Queen Elizabeth, and was photographed attending church with the monarch last month.

Queen attends church service
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Queen Elizabeth and Lady Sarah Chatto attending church near Balmoral in October 2019.
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Amy Mackelden
Contributing Writer

Amy Mackelden is a freelance writer, editor, and disability activist. Her bylines include Harper's BAZAAR, Nicki Swift, Cosmopolitan, Marie Claire, ELLE, The Independent, Bustle, Healthline, and HelloGiggles. She co-edited The Emma Press Anthology of Illness, and previously spent all of her money on Kylie Cosmetics.