STOCKHOLM — Sweden’s Prince Carl Philip, who is fifth in the line of succession, and his wife Princess Sofia have tested positive for the coronavirus, the Swedish royal household said Thursday, adding that they have “milder flu symptoms but feel well under the circumstances.

The prince, son of Sweden’s King Carl XVI Gustaf, and his wife are quarantined at home with their two children, the palace said.

The monarch, Austrian-born Queen Silvia, their oldest daughter Crown Princess Victoria, and Prince Daniel will protectively be tested Thursday, it said in a statement. The royal family had been together in connection with Friday’s burial of Walther Sommerlath, Silvia’s brother in Sweden, palace spokeswoman Margareta Thorgren told the Aftonbladet daily.

The 41-year-old prince wed Sofia Hellqvist, now 35, in June 2015. The couple has two children, Prince Alexander and Prince Gabriel.

King Carl Gustaf is Sweden’s head of state, but his duties are ceremonial and he holds no political power.