of all previous Norwegian monarchs since 1818. Members Members of the Royal House are: King Harald V (The Monarch) Queen Sonja (The Consort) Crown Prince Haakon (The Crown Prince (The King's son and heir apparent)) Crown Princess Mette-Marit (The Crown Princess (The King's daughter-in-law) Princess Ingrid Alexandra of Norway (The King's granddaughter) Members of the Royal Family (people who are in the royal bloodline or who have become a member of the family through marriage but are not in the Royal House) are: Prince Sverre Magnus of Norway (The King's grandson) Marius Borg Høiby (The King's step-grandson) Princess Märtha Louise of Norway (The King's daughter) Maud Angelica Behn (The King's granddaughter) Leah Isadora Behn (The King's granddaughter) Emma Tallulah Behn (The King's granddaughter) Princess Astrid, Mrs. Ferner (The King's sister) Deceased members of the Royal Family are: Queen Maud (The King's grandmother; died in 1938) Crown Princess Märtha (The King's mother; died in 1954) King Haakon VII (The King's grandfather; died in 1957) King Olav V (The King's father; died in 1991) Princess Ragnhild, Mrs. Lorentzen (The King's sister; died in 2012) Johan Ferner (The King's brother-in-law; died in 2015) Ari Behn (The King's former son-in-law, died in 2019) Erling Lorentzen (The King's brother-in-law, died in 2021) Family tree of members Notes * Member of the Royal House Royal coat of arms The coat of arms of Norway is one of the oldest in Europe and serves both as the coat of arms of the nation and of the Royal House. This is in keeping with its origin as the coat of arms of the kings of Norway during the Middle Ages. Håkon the Old (1217–1263) used a shield with a lion. The earliest preserved reference to the colour of the arms is the King's Saga written down in 1220. In 1280 King Eirik Magnusson added the crown and silver axe to the lion. The axe is the martyr axe of St. Olav, the weapon used to kill him in the battle of Stiklestad in 1030. The specific rendering of the Norwegian arms has changed through the years, following changing heraldic fashions. In the late Middle Ages, the axe handle gradually grew longer and came to resemble a halberd. The handle was usually curved in order to fit the shape of shield preferred at the time, and also to match the shape of coins. The halberd was officially discarded and