Last week, baby Prince George got a new cousin when the queen's granddaughter Zara Phillips  gave birth to a baby girl. Today we found out her name: Mia Grace Tindall! Like her mom, Princess Anne, Zara opted against a traditional royal name. With so much royal protocol, it's easy to get confused over the British monarchy. So, we've put together a quick who's who of Prince George's family. Most of these may be familiar faces, but we're also taking a wider look at the royal family tree and Kate's family to show how each person is related to Prince George — including the latest little addition.
Second Cousin: Mia Grace Tindall
We still have to wait a few more days for a picture of the new royal baby, who was born to Prince William's cousin Zara Phillips on Jan. 17. She is now 16th in line to the throne, behind cousin Prince George, who is third.
First Cousin Once Removed: Zara Phillips
Zara Tindall — commonly known as Zara Phillips — is just a year older than her first cousin Prince William. So she is George's first cousin once removed.
First Cousin Once Removed: Mike Tindall
Another first cousin once removed for the royal baby is Mike Tindall, a rugby player and Zara Phillips's husband since 2011.
Great-Aunt: Princess Anne, Princess Royal
As Queen Elizabeth II's only daughter, the princess royal is Prince George's great-aunt. She and the baby boy have something in common right from the start — at the time of Princess Anne's birth, she, too, was the third in line to the throne, in succession behind her mother, the queen, and her older brother, Prince Charles.
First Cousin Once Removed: Peter Phillips
As the only son of Princess Anne, Peter Phillips is one of Prince William's cousins, making him George's first cousin once removed.
First Cousin Once Removed: Autumn Phillips
Autumn married Peter Phillips in 2008, making her George's first cousin once removed too.
Second Cousin: Savannah Phillips
Born Dec. 29, 2010, Peter and Autumn Phillips's daughter Savannah is about three years older than George.
Second Cousin: Isla Phillips
Peter and Autumn Phillips's second daughter, Isla, was born on March 29, 2012, making her just over a year older than the prince.
Great-Uncle: Vice Admiral Sir Tim Laurence
Married to Princess Anne, Princess Royal, since 1992, Vice Admiral Sir Tim Laurence — a retired British naval officer — is Prince George's great-uncle.
Great-Uncle: Prince Andrew, Duke of York
Prince Andrew, Duke of York — the queen's second son — is the Prince of Cambridge's great-uncle.
First Cousin Once Removed: Princess Beatrice of York
Prince Andrew's elder daughter, Princess Beatrice, is one of George's first cousins once removed.
First Cousin Once Removed: Princess Eugenie of York
The younger of Prince Andrew's two daughters, Princess Eugenie, is a first cousin once removed to the Prince of Cambridge.
Great-Uncle: Prince Edward, Earl of Wessex
Prince Edward, Earl of Wessex, is the queen's youngest child and one of George's three great-uncles on Prince William's side of the family.
Great-Aunt: Sophie, Countess of Wessex
Sophie, Countess of Wessex, is the wife of Prince Edward, making her George's great-aunt.
First Cousin Once Removed: Lady Louise Windsor
Lady Louise Windsor, 9, the daughter of Prince Edward, Earl of Essex, and his wife, Sophie, is George's first cousin once removed.
First Cousin Once Removed: James, Viscount Severn
Another first cousin once removed is James, Viscount Severn, the son of Prince Edward and his wife, Sophie.
Dad: William, Duke of Cambridge
Prince George is Prince William's first child, and his son follows him as the third heir to the British throne.
Mom: Catherine, Duchess of Cambridge
Kate Middleton's firstborn son is a future heir to the throne.
Grandfather: Prince Charles
George is the first grandchild for Prince Charles, and the little one follows in his footsteps as a future heir to the throne.
Step-Grandmother: Camilla, Duchess of Cornwall
Camilla has been married to Prince Charles since 2005, and George is her sixth grandchild — she has five others from her two children with Andrew Parker Bowles, her ex-husband.
Uncle: Prince Harry
With his great sense of humor and fun-loving personality, we're betting that Prince Harry is going to be one seriously awesome uncle to his nephew.
Great-Grandmother: Queen Elizabeth II
Prince George was Queen Elizabeth II's third great-grandchild after Isla and Savannah Phillips, but he will also be the future heir to her throne. She also can add Mia Grace as her fourth.
Great-Grandfather: Prince Philip, Duke of Edinburgh
As the man behind the monarch  since 1947, Prince Philip, Duke of Edinburgh, can count Prince George and Mia Grace as great-grandchildren numbers three and four.
Grandfather: Michael Middleton
Prince George is the first grandchild for Kate's dad, Michael, who worked for British Airways before managing the family's party supply business, Party Pieces , with his wife.
Grandmother: Carole Middleton
Carole, Kate's mom, is George's grandmother, of course, and seeing as the duchess was staying with her mom as she prepared for George's labor, we're guessing Carole is going to be a big part of her first grandson's life.
Aunt: Pippa Middleton
Kate's sister, Pippa — now a contributing editor for Vanity Fair  — is the prince's aunt.
Uncle: James Middleton
James, Kate and Pippa's younger brother, is George's uncle.
Great-Uncle: Charles Spencer, 9th Earl Spencer
Charles, the brother of the late Princess Diana, is Prince George's great-uncle.