Friso, who had been such a support after Claus' death, remains in a coma.
They have three sons, Willem-Alexander, born in 1967, Friso, born in 1968, and Constantijn, born in 1969.
Friso, a son of Queen Beatrix of the Netherlands, had been airlifted to hospital in Innsbruck after the incident.
Friso was injured in an avalanche at an Austrian ski resort last year.
"We have hoped that Prince Friso will recover again, " said Mayor Ludwig Muxel.
In February last year her second son, Prince Friso, was struck by an avalanche in Austria and remains in a coma.
However the king's brother Prince Johan Friso lost his place in the line of succession when he married Mabel Wisse Smit in 2004 without parliament's approval.
CNN: What Dutch 'bicycling monarchs' can teach world's royals
Regulations for such deals were very strict, contemplates Friso Visser.
FORBES: Angola Invests in Fight Against Illegal Fishing in Coastal Waters
Tragedy struck again in February 2012, as Beatrix's second son, Prince Johan Friso, suffered a skiing accident and fell into a coma from which he is yet to emerge.
The Dutch media has speculated that the queen was abdicating to spend more time with her second son Friso, who was injured in an avalanche at an Austrian ski resort last year.
The 2002 death of her German-born husband, Prince Claus, took a toll on her, and it was apparent how deep her reliance on the quiet man had been: she was filmed leaning heavily, almost hanging, on Prince Friso's arm as they entered the church for her spouse's funeral.
应用推荐