Princess Estelle and Prince Oscar show off their strong sibling bond in new photos

Brotherly-sister love! The Swedish Royal Court sent Midsummer — also known as St. John's Day — greetings on Thursday by sharing new adorable portraits of Princess Estelle and Prince Oscar. “The royal house The Crown Princess family wishes happy midsummer with this greeting from Haga Castle,” a message on the palace’s Instagram read.

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VER GALERÍA Estelle and Oscar star in new photos released by the Swedish palace Photo: Erika Gerdemark, The Royal Court, Sweden

Crown Princess Victoria and Prince Daniel’s children star in four new photos displaying their strong sibling bond. Estelle showed off her big sister skills cradling her baby brother on a couch in one image. The five-year-old, who is second in line to the Swedish throne, crouched down to Oscar’s level in a second photo smiling at the one-year-old, while holding her brother's hand in another.

King Carl XVI Gustaf's granddaughter looked all grown up in the newly released photos wearing a flowy white dress, beige Mary Jane flats and styling her golden locks into two French braids. The future Queen posed for one solo shot going barefoot as she modeled her summer frock. Meanwhile, Oscar coordinated in summer hues with his big sister sporting a blue striped peasant shirt, khaki slacks and blue shoes.

VER GALERÍA The siblings showed off their strong sibling bond at their home at Haga Palace Photo: Erika Gerdemark, The Royal Court, Sweden

The tender sibling photos were taken at Estelle and Oscar’s home of Haga Palace in Stockholm. Prince Daniel, who married into the Swedish royal family in 2010, previously opened up about his desire for his children to experience life as a non-royal. "Being with your children is the best thing in the world," he shared. "I also think it's important to let the children visit all sorts of environments. You need to know how the metro works, and what it's like to travel by bus and what it's like to stand in line, and what it's like to experience that passion within the sports community when there's a game and the [AIK football team's supporter club] Black Army is chanting away. That's something I don't want them to miss out on."

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