Sweden royal family
Prince Carl Philip and Princess Sofia with Prince Alexander after his christening at the Palace Chapel of the Drottningholm Palace, Stockholm, Sweden Sept. 9, 2016. Reuters

The Sweden royal family will expand further as Prince Carl Philip and Princess Sofia are expecting their second child, 11 months after their first baby was born, the Swedish palace confirmed on their official Instagram page Thursday

Princess Sofia gave birth to her first baby, Prince Alexander, last April. He will turn 1 next month.

Read: Prince Alexander Makes His First High Profile Public Debut Outside Royal Palace In Stockholm

“We are happy to announce that we are expecting a child, a sibling to Prince Alexander. We are looking forward to welcoming a new little member to our family,” the couple said in a statement. The second baby is due to arrive in September.

The royal couple had met on a holiday in Bastad, Sweden in 2009 and described their meeting as “love at first sight.” After a five year relationship and six month engagement, Carl and Sofia married in June 2015 in the Royal Palace chapel, a celebration which last two days, according to the Irish Independent.

After the birth of Prince Alexander, Princess Sofia had given an interview to a Swedish magazine about her becoming a new parent. “It’s amazing,” Princess Sofia had said during her visit to inspect the agricultural facilities around Stenhammar Palace, one of the royal family’s summer residences, 75 miles south of Stockholm.

“He is very sweet and well-behaved,” she had said then. When asked which parent their firstborn took after most, Sofia replied: “He’s a mixture of us both!”

Sofia shared her experience of how a baby changed her whole life. “The first time does take some adjustment,” Prince Carl Philip had said. "But it’s still absolutely amazing and wonderful," he said.

Prince Alexander was christened on Sept. 9, 2016, at Stockholm’s Royal Chapel.