Kate Middleton's newborn son is the biggest royal baby to be born in over 100 years

Less than a day old, and Kate Middleton's third baby is already making history.

Kensington Palace announced on Monday morning that Prince William and Kate had welcomed their third royal baby -- a boy! -- at 11:01 am London time, weighing 8 pounds 7 ounces.

Per the Daily Mail, the birth weight of Will and Kate's second son makes him the heaviest royal baby to be born in over 100 years. In addition to being heavier than both of his siblings -- Prince George weighed 8 pounds 6 ounces at birth, while Charlotte weighed 8 pounds 3 ounces -- the unnamed newborn is also heavier than his grandfather Charles, father William and uncle Harry when they were born.

SEE ALSO: Kate Middleton gives birth to her third child: The royal baby is here!

As the world celebrates the arrival of a new royal child, speculation is already mounting around the name that Will and Kate will choose. Arthur, Albert and Philip are considered to be frontrunners for their second son, who is now fifth in line for the throne behind Prince Charles, Prince William, Prince George and Princess Charlotte. It's the first time in history that a female wasn't surpassed by a younger male in the succession.

See photos of royal baby debuts through the years:

27 PHOTOS
Royal baby arrivals through the years
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Royal baby arrivals through the years
UNITED KINGDOM - JUNE 22: Prince Charles, Prince of Wales and Diana, Princess of Wales leave the Lindo Wing of St Mary's hospital with their first baby son, Prince William (Photo by Tim Graham/Getty Images)
The Prince and Princess of Wales with newborn son baby Prince William at St Mary's hospital, London in June 1982. Photo. Anwar Hussein
21st JUNE : On this day in 1982 Prince William was born. The Prince and Princess of Wales leaving the Lindo Wing, at St. Mary's Hospital after the birth of their baby son, Prince William.
LONDON - JUNE 22: New born Prince William with Diana Princess of Wales and Prince Charles leave St. Mary's hospital on June 22, 1982 in Paddington, London, England. He was born in the Lindo Wing of the hospital, the day before, June 21.(Photo by David Levenson/Getty Images)
LONDON, ENGLAND - JUNE 22: Diana, Princess of Wales and Prince Charles, Prince of Wales leave St. Mary's Hospital in London with baby Prince William on June 22, 1982. (Photo by Anwar Hussein/WireImage)
LONDON, UNITED KINGDOM - SEPTEMBER 17: Diana, Princess of Wales and Prince Charles, Prince of Wales leave the Lindo Wing of St. Mary's Hospital following the birth of Prince Harry on September 17, 1984 in London, England. (Photo by Anwar Hussein/Getty Images)
LONDON - SEPTEMBER 16: Diana Princess of Wales and Prince Charles with new born Prince Harry, leave St.Mary's Hospital on September 16, 1984 in Paddington, London. Diana wore an oufit designed by Jan Van Velden. (Photo by David Levenson/Getty Images)
LONDON, UNITED KINGDOM - SEPTEMBER 17: Diana, Princess of Wales leaves the Lindo Wing of St. Mary's Hospital following the birth of Prince Harry on September 17, 1984 in London, England. (Photo by Anwar Hussein/Getty Images)
LONDON, UNITED KINGDOM - SEPTEMBER 17: Prince Charles & Princess Diana With The Newly Born Prince Henry (harry) Outside The Lindo Wing. (Photo by Tim Graham/Getty Images)
LONDON, UNITED KINGDOM - SEPTEMBER 17: Diana, Princess of Wales and Prince Charles, Prince of Wales leave the Lindo Wing of St. Mary's Hospital following the birth of Prince Harry on September 17, 1984 in London, England. (Photo by Anwar Hussein/Getty Images)
LONDON - SEPTEMBER 16: (FILE PHOTO) Prince William, accompanied by nanny Barbara Barnes, waves as he leaves St Mary's Hospital after visiting his newborn brother, Prince Harry, on September 16, 1984 in London, England. (Photo by Anwar Hussein/Getty Images)
LONDON - SEPTEMBER 16: (FILE PHOTO) Prince William leaves St Mary's Hospital after visiting his newborn brother, Prince Harry, on September 16, 1984 in London, England. (Photo by Anwar Hussein/Getty Images)
Britain's Prince William and his wife Catherine, Duchess of Cambridge appear with their baby son outside the Lindo Wing of St Mary's Hospital, in central London July 23, 2013. Kate gave birth to the couple's first child, who is third in line to the British throne, on Monday afternoon, ending weeks of feverish anticipation about the arrival of the royal baby. REUTERS/Stefan Wermuth (BRITAIN - Tags: ROYALS ENTERTAINMENT HEALTH)
Britain's Catherine, Duchess of Cambridge, holds her baby son outside the Lindo Wing of St Mary's Hospital before leaving with Prince William, in central London July 23, 2013. Kate gave birth to the couple's first child, who is third in line to the British throne, on Monday afternoon, ending weeks of feverish anticipation about the arrival of the royal baby. REUTERS/John Stillwell/POOL (BRITAIN - Tags: ROYALS ENTERTAINMENT HEALTH)
Britain's Prince William and his wife Catherine, Duchess of Cambridge appear with their baby son outside the Lindo Wing of St Mary's Hospital, in central London July 23, 2013. Kate gave birth to the couple's first child, who is third in line to the British throne, on Monday afternoon, ending weeks of feverish anticipation about the arrival of the royal baby. REUTERS/Andrew Winning (BRITAIN - Tags: ROYALS ENTERTAINMENT HEALTH)
Britain's Prince William and his wife Catherine, Duchess of Cambridge appear with their baby son outside the Lindo Wing of St Mary's Hospital, in central London July 23, 2013. Kate gave birth to the couple's first child, who is third in line to the British throne, on Monday afternoon, ending weeks of feverish anticipation about the arrival of the royal baby. REUTERS/Cathal McNaughton (BRITAIN - Tags: ROYALS ENTERTAINMENT HEALTH)
Britain's Prince William and his wife Catherine, Duchess of Cambridge, appear with their baby daughter outside the Lindo Wing of St Mary's Hospital, in London, Britain May 2, 2015. The Duchess of Cambridge, gave birth to a girl on Saturday, the couple's second child and a sister to one-year-old Prince George. REUTERS/Suzanne Plunkett
Britain's Prince William and his wife Catherine, Duchess of Cambridge, appear with their baby daughter, Charlotte Elizabeth Diana, outside the Lindo Wing of St Mary's Hospital, in London, Britain May 2, 2015. The Duchess of Cambridge, gave birth to a girl on Saturday, the couple's second child and a sister to one-year-old Prince George. REUTERS/John Stillwell/pool
Britain's Prince William and his wife Catherine, Duchess of Cambridge, leave with their baby daughter from the Lindo Wing of St Mary's Hospital, in London, Britain May 2, 2015. The Duchess of Cambridge, gave birth to a girl on Saturday, the couple's second child and a sister to one-year-old Prince George. REUTERS/Suzanne Plunkett
Britain's Prince William and his wife Catherine, Duchess of Cambridge, appear with their baby daughter, Charlotte Elizabeth Diana, outside the Lindo Wing of St Mary's Hospital, in London, Britain May 2, 2015. The Duchess of Cambridge, gave birth to a girl on Saturday, the couple's second child and a sister to one-year-old Prince George. REUTERS/Cathal McNaughton
LONDON, ENGLAND - APRIL 23: Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge, depart the Lindo Wing with their newborn son at St Mary's Hospital on April 23, 2018 in London, England. The Duchess safely delivered a boy at 11:01 am, weighing 8lbs 7oz, who will be fifth in line to the throne. (Photo by Gareth Cattermole/Gareth Cattermole/Getty Images)
Britain's Catherine, the Duchess of Cambridge and Prince William leave the Lindo Wing of St Mary's Hospital with their new baby boy in London, April 23, 2018. REUTERS/Hannah Mckay
Britain's Catherine, the Duchess of Cambridge and Prince William leave the Lindo Wing of St Mary's Hospital with their new baby boy in London, April 23, 2018. REUTERS/Hannah Mckay
Britain's Prince William and Catherine, The Duchess of Cambridge leaves the Lindo Wing at St Mary's Hospital with their newborn son in London, April 23, 2018. John Stillwell/Pool via Reuters
Britain's Catherine, the Duchess of Cambridge and Prince William leave the Lindo Wing of St Mary's Hospital with their new baby boy in London, April 23, 2018. REUTERS/Peter Nicholls
LONDON, ENGLAND - APRIL 23: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge depart the Lindo Wing with their newborn son at St Mary's Hospital on April 23, 2018 in London, England. The Duchess safely delivered a boy at 11:01 am, weighing 8lbs 7oz, who will be fifth in line to the throne. (Photo by Chris Jackson/Getty Images)
LONDON, ENGLAND - APRIL 23: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge leave the Lindo Wing of St Mary's Hospital with their new born baby boy on April 23, 2018 in London, England. The Duchess of Cambridge gave birth to a boy at 11.01 BST, weighing 8lb 7oz. (Photo by Chris J Ratcliffe/Getty Images)
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"Her Royal Highness The Duchess of Cambridge was safely delivered of a son at 1101hrs," the palace's Monday morning announcement read. "The baby weighs 8lbs 7oz. The Duke of Cambridge was present for the birth. Her Royal Highness and her child are both doing well."

"The Queen, The Duke of Edinburgh, The Prince of Wales, The Duchess of Cornwall, Prince Harry and members of both families have been informed and are delighted with the news," the palace added in another tweet.

Will and Kate are expected to debut their third child outside of the Lindo Wing on Monday afternoon.

Fans waiting outside for the debut on Monday:

7 PHOTOS
Fans await the Royal Baby
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Fans await the Royal Baby
General view of the Lindo Wing, the private ward at St Mary's Hospital, London, where barriers were put up yesterday in anticipation of the Duchess of Cambridge having her third child there. Picture date: Monday April 9th, 2018. Photo credit should read: Matt Crossick/ EMPICS Entertainment.
Police officers outside the Lindo Wing at St Mary's Hospital in Paddington, London, where the Duchess of Cambridge has been admitted to the hospital in the early stages of labour.
Royal fans talk to a reporter outside the Lindo Wing at St Mary's Hospital in Paddington, London, where the Duchess of Cambridge has been admitted to the hospital in the early stages of labour.
Royal fans John Loughrey (left) and Terry Hutt hold dolls outside the Lindo Wing at St Mary's Hospital in Paddington, London, where the Duchess of Cambridge has been admitted in the early stages of labour.
Royal fan Sharon McEwan camped outside the Lindo Wing at St Mary's Hospital in Paddington, London, where the Duchess of Cambridge has been admitted in the early stages of labour.
Two supporters of the royal family holding dolls wearing crowns celebrate outside the Lindo Wing of St Mary's Hospital after Britain's Catherine, the Duchess of Cambridge, gave birth to a son, in London, April 23, 2018. REUTERS/Henry Nicholls
A supporter of the royal family holds a doll wearing a crown as he sits outside the Lindo Wing of St Mary's Hospital after Britain's Catherine, the Duchess of Cambridge, was admitted after going into labour ahead of the birth of her third child, in London, April 23, 2018. REUTERS/Henry Nicholls
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