Prince William And Kate Middleton React To Royal Baby News

Caroline Bologna

Prince William and Kate Middleton are wishing Prince Harry and Meghan Markle the best as they embark on the journey of parenthood.

“I’m very pleased and glad to welcome my brother to the sleep deprivation society that is parenting!” William told reporters Tuesday at the launch of the King’s Cup Regatta in London. The Duke and Duchess of Sussex welcomed their first child on Monday.

He added that he and Kate are “absolutely thrilled and looking forward to seeing them in the next few days when things have quieted down.”

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“It’s such a special time ― with Louis and Charlotte just having had their birthdays,” the duchess said, referring to two of her children. “It’s such a great time of the year to have a baby.”

“As William said, we look forward to meeting him and finding out what his name’s going to be. It’s really exciting for both of them,” she added. “These next few weeks, it’s always very daunting first time around so wish them all the best.”

William said he had “plenty of advice” for his little brother and sister-in-law.

“I hope the next few days they can settle down and enjoy having a newborn in the family and all the joys that come with that,” he said.

Buckingham Palace announced Monday that the Duke and Duchess of Sussex welcomed a baby boy weighing 7 pounds, 3 ounces, at 5:26 a.m.

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Catherine, Duchess of Cambridge and Prince Louis on the grounds of Clarence House in St James's Palace following his christening on July 9, 2018.
Catherine, Duchess of Cambridge and Prince Louis on the grounds of Clarence House in St James's Palace following his christening on July 9, 2018.
Official photograph taken after the christening of Prince Louis at Clarence House.
Official photograph taken after the christening of Prince Louis at Clarence House.
The Duke and Duchess of Cambridge, Prince George and Princess Charlotte, on the day of her christening, July 5, 2015.
The Duke and Duchess of Cambridge, Prince George and Princess Charlotte, on the day of her christening, July 5, 2015.
Official group portrait following Princess Charlotte's christening. 
Official group portrait following Princess Charlotte's christening. 
The Duke and Duchess of Cambridge after Prince George's christening on Oct. 23, 2013.
The Duke and Duchess of Cambridge after Prince George's christening on Oct. 23, 2013.
Official group portrait taken after Prince George's christening. 
Official group portrait taken after Prince George's christening. 
The Royal Family at Sandringham Church for Princess Eugenie's christening on Dec. 23, 1990.
The Royal Family at Sandringham Church for Princess Eugenie's christening on Dec. 23, 1990.
The Duchess of York and Prince Andrew at The Chapel Royal at St James's Palace for Princess Beatrice's christening on Dec. 20, 1988.
The Duchess of York and Prince Andrew at The Chapel Royal at St James's Palace for Princess Beatrice's christening on Dec. 20, 1988.
Princess Diana holds Prince Harry on the day of his christening on Dec. 21, 1984.
Princess Diana holds Prince Harry on the day of his christening on Dec. 21, 1984.
Prince William steals the spotlight following Prince Harry's christening. 
Prince William steals the spotlight following Prince Harry's christening. 
Queen Elizabeth, Prince Charles, Princess Diana, Prince Philip and Queen Elizabeth the Queen Mother with Prince William on the occasion of his christening on Aug. 4, 1982.
Queen Elizabeth, Prince Charles, Princess Diana, Prince Philip and Queen Elizabeth the Queen Mother with Prince William on the occasion of his christening on Aug. 4, 1982.
Princess Diana and Prince Charles with baby Prince William on the day of his christening at Buckingham Palace.
Princess Diana and Prince Charles with baby Prince William on the day of his christening at Buckingham Palace.
The christening of Princess Anne's son, Peter Phillips, on Dec. 22, 1977.
The christening of Princess Anne's son, Peter Phillips, on Dec. 22, 1977.
Princess Margaret and Antony Armstrong-Jones, the Earl of Snowdon, with their baby daughter, Lady Sarah Armstrong-Jones, on the day of her christening in 1964.
Princess Margaret and Antony Armstrong-Jones, the Earl of Snowdon, with their baby daughter, Lady Sarah Armstrong-Jones, on the day of her christening in 1964.
Then-Princess Elizabeth holding Princess Anne alongside the Duke of Edinburgh on her christening day at Buckingham Palace in October 1950.
Then-Princess Elizabeth holding Princess Anne alongside the Duke of Edinburgh on her christening day at Buckingham Palace in October 1950.
Four generations of British royals gather around Princess Anne on her christening day in 1950.
Four generations of British royals gather around Princess Anne on her christening day in 1950.
Then-Princess Elizabeth with Prince Charles following his christening on Dec. 15, 1948.
Then-Princess Elizabeth with Prince Charles following his christening on Dec. 15, 1948.
Prince Charles' christening day.
Prince Charles' christening day.
The Duke and Duchess of York with their baby daughter, the future Queen Elizabeth II, after her christening in the private chapel at Buckingham Palace in May 1926.
The Duke and Duchess of York with their baby daughter, the future Queen Elizabeth II, after her christening in the private chapel at Buckingham Palace in May 1926.
The Royal Family at Buckingham Palace for the christening of Princess Elizabeth.
The Royal Family at Buckingham Palace for the christening of Princess Elizabeth.
Queen Victoria holding the future King Edward VIII on the day of his christening in 1894. His father (later George V) and grandfather (later Edward VII) stand behind them.
Queen Victoria holding the future King Edward VIII on the day of his christening in 1894. His father (later George V) and grandfather (later Edward VII) stand behind them.

This article originally appeared on HuffPost.