After all the speculation we know now. The Duchess of Sussex has confirmed that she is six months pregnant and shares the news with a well-wishers during a tour on a day of the engagement in Birkenhead. Which means that Baby Sussex is due at the end of April. And although we all know that first babies can keep their parents waiting and that Baby Sussex may make her debut in early May, we're staying the fourth month of the year. Here's a look at who the new seventh heir to the throne will share a birthday month with when we look at the royal babies of House of Windsor in April.

The Queen

Elizabeth II, the most famous royal April baby, arrived on April 21stst 1926 the first child of the then Duke and Duchess of York, later King George VI. And Queen Elizabeth. The Queen was born Princess Elizabeth Alexandra Mary of York and arrived at her maternal grandparents' home in London 17 sooner than expected, at Bruton Street 17, which was soon surrounded by a press looking for news about this particular royal baby. There are absolutely no prizes for knowing what has become of this royal baby.

Prince Louis of Cambridge

Baby Sussex's cousin arrived at St. George's Day last year. Prince Louis Arthur Charles of Cambridge was born on April 23, on January 11thrd Only a few hours later, in the Lindo Wing of St. Mary's Hospital, Paddington, he went home with his mother and father, the Duke and Duchess of Cambridge.

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Louis, the third child of the Duke and Duchess of Cambridge, is currently the youngest boy in the House of Windsor, but that might change – Harry and Meghan also confirmed today that they do not know their baby's gender, even if the bookies believe the duchess will deliver a daughter.

Lady Helen Taylor

The only daughter of the Duke and Duchess of Kent was born on April 28thth In 1964 at her parents' home in Coppins near Iver in Buckinghamshire. Her second child was baptized Helen Marina Lucy. She married Timothy Taylor in 1992 at St. George's Chapel, Windsor, and they had four children. Lady Helen is currently 39th in harmony with the throne.

Lord Frederick Windsor

The first child of Prince and Princess Michael of Kent, Frederick Michael George David Louis, was born on April 6thth 1979 at St. Mary's Hospital in London.

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He is 48 years oldth on the throne and with his wife, actress Sophie Winkleman, he has two daughters, Maud and Isabella.

Lady Gabriella Windsor

Frederick's younger sister is another Windsor-April baby. Lady Gabriella Marina Alexandra Ophelia Windsor was born on April 23rdrd 1981 in St Marys in London. Currently 51st In the queue for the throne she announced end of 2018 her engagement to Thomas Kingston. The couple should marry later this year at St. George's Chapel, Windsor.

The Sussex link

Harry is not the first Duke of Sussex and his predecessor in this role had his own April connection. Prince August Friedrich, son of George III. And first Duke of Sussex, married on April 4th 1793. However, Augustus and his bride, Lady Augusta Murray, did not receive the consent of the bridegroom's father before secretly saying "I do" in Rome, meaning that their union violated the Royal Marriages Act. Augusta was never recognized as Duchess of Sussex and after having had two children, they went their separate ways.

And in a few months, it looks like a new Windsor will be writing his own chapter in the royal history books, all pointing to a royal baby in April for Meghan and Harry.