Your Field Guide to Royal Babies Who Aren't George

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Elizabeth II, queen mother of England, is 90 years old today. As a part of the celebration, Annie Leibovitz took some portraits of the royal with various members of her giant family. The most adorable of the bunch features Queen Elizabeth posing with her youngest grandchildren and her great-grandchildren.

If you only dabble in royalist tendencies, you're probably all, "Who the heck are these non-George babies?" You'll notice Charlotte, sure. At nearly a year old, she's replaced Elizabeth's corgis as her lap dog for a moment. But who are the others? Here's a quick rundown of the littlest monarchs, from youngest to eldest.

Mia Tindall

Who? Mia is the one directly to the queen's left, holding a purse like a big girl.

Age: Two

Title: None

Parents: She's the daughter of Zara and Mike Tindall. Zara is the second-eldest grandchild of Queen Elizabeth II by way of Anne, Princess Royal, and Anne's husband, Captain Mark Phillips.

How many people must bite it if she's to assume the throne? Sixteen. She's the 17th in line.

Isla Phillips

Who? Far right in pink.

Age: Three

Title: None

Parents: Peter Phillips, the queen's eldest grandchild, and wife Autumn.

How many people must bite it if she's to assume the throne? Fourteen. She's 15th in line to the throne.

Savannah

Who? The one between George and Charlotte, on the right of the queen.

Age: Five

Title: None.

Parents: Peter Phillips, the queen's eldest grandchild, and wife Autumn.

How many people must bite it if she's to assume the throne? Thirteen! She's 14th in line to the throne.

James

Who? The boy who is not George and the queen's youngest grandchild.

Age: Eight

Title: Viscount Severn

Parents: The only son of Edward and Sophia, the Earl and Countess of Wessex, respectively.

How many people must bite it if he's to assume the throne? Nine. He's 10th in line.

Lady Louise

Who? The tallest girl and the queen's second-youngest grandchild after her brother.

Age: 12

Title: Lady Louise Windsor

Parents: Prince Edward, Earl of Wessex, and Sophie, Countess of Wessex.

How many people must bite it if she's to assume the throne? Ten! She's 11th in line to the throne.