Short answers, pulled from the story.
Peter Andreas Munch, born on the 15th of December 1810, was a Norwegian historian who specialized in the medieval history of Norway. He produced the eight-volume Det norske Folks Historie and was one of the first non-Catholics permitted to research in the Vatican archives.
Det norske Folks Historie, or History of the Norwegian People, is Munch's major work in eight volumes, written between 1852 and 1863. It drew on his research in the Vatican archives, where he transcribed and copied papal letters relating to medieval Norway.
Peter Andreas Munch was the uncle of Edvard Munch, the famous Norwegian painter. P. A. Munch's father, Edvard Storm Munch, was the painter's grandfather's brother.
Munch spent 1859 to 1861 in Rome researching volumes of papal letters in the Vatican archives. He took extensive notes and drew accurate facsimiles of texts by hand, sending all his findings to the Royal Archives in Christiania.
The Chronicles of Mann is a medieval text recording the history of the Isle of Man and surrounding islands. Munch translated runic characters from the 3rd Chronicle, adding historical notes, and later co-edited Chronica regvm Manniae et insvlarvm with Alexander Goss, published in 1874.
Munch died from a stroke in Rome while returning to collect his family. He was buried in the Protestant Cemetery in Rome.