Revealed: Kate Middleton’s Affectionate Nickname for Youngest Son Prince Louis 

Kate Middleton is balancing royal life and motherhood gracefully. The Princess of Wales was spotted at a royal event alongside Prince William and their three kids, Prince George, Princess Charlotte and Prince Louis. While spending time with her little ones, Kate was heard calling the youngest member of the Wales household an affectionate name.

Kate told the youngster, "Pop that in the fire, Lou Bug." It's been reported that the St Andrews alum calls Charlotte "Lottie" and "Poppet," while George lovingly calls his dad "Pops."

Despite Kate's position within the monarchy, her family life is her greatest priority. The Royal Observer previously reported Kate found time to plan an elaborate fifth birthday party for Louis and his friends just a few weeks before the coronation.

"Kate has organized a fun adventure-themed birthday party with all his school friends to celebrate the milestone, and she and William are also doing something family-orientated," a source spilled about how the famous couple prepared for the exciting celebration.

"They always make birthdays special for their children and go the extra mile!" the insider added.

Aside from spending quality time with her loved ones, Kate and William relocated to Windsor to create a sense of normalcy for their youngsters. While residing in Kensington Palace, the proud parents felt as though the environment restricted the juveniles. The family currently resides in Adelaide Cottage, which is located in Kate's hometown of Berkshire.

"The reality is they are quite confined in what they can do in London," a friend told a newspaper. "The kids can't go into the park and kick a football with friends. Their plan is to be there for the next 10 to 15 years and then move to Anmer, which is so special to them."

“I think Wills and Kate need space to bring up their children. Kensington Palace is a glorious prison for kids – they want to be able to play football without being watched from behind the gates," author Ingrid Seward shared. “I think Windsor will be perfect for them, as they will have lots of freedom and they can all be at school together.”

Louis nickname was reported by News.com.au.