
Gerhard Peter Frantz Munthe (19 July 1849 inElverum,Hedmark – 15 January 1929 inLysaker,Bærum) was a Norwegian painter and illustrator.
Munthe was born inElverum to physician Christopher Pavels Munthe (1816–1884) and his wife Christine Margrethe Pavels Aabel (1827–1887).[2]
He was a brother of writerMargrethe Munthe and historians and military officersHartvig Andreas Munthe andCarl Oscar Munthe. He was also a nephew of historian and cartographerGerhard Munthe and an uncle of genealogistChristopher Morgenstierne Munthe, librarianWilhelm Munthe, and painterLagertha Munthe.[3] Through his mother he was a nephew ofAndreas Leigh Aabel andOluf Andreas Aabel, and a first cousin ofHauk Aabel.
In December 1886 he married Sigrun Sandberg (1869–1957).[2] Between 1886 and 1890Bjørn Bjørnson was his stepfather-in-law.[4] Munthe and Sandberg settled inSandvika and laterLysaker.[2] Also, Munthe had a studio atRingstabekk for a short period.[5] The couple divorced in 1919, the same year she marriedFridtjof Nansen.[2] Munthe was a prolific letter writer, and also published several articles, some of which were collected and published in 1919 asMinder og meninger (English: Memories and opinions).[2]

When Munthe moved toChristiania in 1863, his intention was to study medicine like his father, but his father advised him to take up the arts. He studied underJohan Fredrik Eckersberg in 1870, and continued underMorten Müller andKnud Bergslien until 1874.[2] Between 1874 and 1876 he studied underAndreas Achenbach and his third cousinLudvig Munthe inDüsseldorf.[6] From 1877 to 1882 he lived inMunich most of the time. However, many of hismotifs were taken from Norway. At this time he painted in thenaturalist style.[2] He is represented with several works in theNational Gallery of Norway.[6] Internationally he took part at theExposition Universelle of 1900, theLouisiana Purchase Exposition of 1904, and elsewhere.[2]
From the 1890s he experimented withdecorative art[6] in theArts and Crafts style. From 1896 to 1899 he was occupied with illustrating the works ofSnorri Sturluson, together withErik Werenskiold, whom he had met in Munich. Some of his works werewoven into largetapestries, notably byRagna Breivik, whose work he particularly admired.[7]
He also created monumental decorations, some of which have been lost, as was his house at Lysaker which was consumed by fire in 1982.[8]
Munthe was a member of the selection committee atHøstutstillingen from its start in 1882 to 1890. He was a member of the board of the National Gallery of Norway from 1892 to 1905 andDen norske Husflidsforening from 1897 to his death, andchair of the National Gallery from 1905 to 1907. He was made a Commander of theRoyal Norwegian Order of St. Olav, and a Knight of the DanishOrder of the Dannebrog and the SwedishOrder of the Polar Star. He died in Bærum, but was buried in Elverum.[2]