Queen Margrethe will officially abdicate on Sunday 14 January. Queen Margrethe will formally abdicate by signing a declaration in front of her country’s Council of State. The abdication will take place at Christiansborg Palace. Crown Prince Frederik will be proclaimed His Majesty King Frederik X from the balcony of Christiansborg Palace. Crown Princess Mary will become Her Majesty Queen Mary, while the couple's eldest son, Prince Christian, will assume the title of Crown Prince of Denmark.