Daemonologie—in full Daemonologie, In Forme of a Dialogue, Divided into three Books: By the High and Mighty Prince, James &c.—was first published in 1597 by King James VI of Scotland as a philosophical dissertation on contemporary necromancy and the historical relationships between the various methods of divination used from ancient black magic. It was reprinted again in 1603 when James took the throne of England. The widespread consensus is that King James wrote Daemonologie in response to sceptical publications such as Reginald Scot's The Discoverie of Witchcraft.
Title page of a 1603 reprinting
James VI and I was King of Scotland as James VI from 24 July 1567 and King of England and Ireland as James I from the union of the Scottish and English crowns on 24 March 1603 until his death in 1625. Although he long tried to get both countries to adopt a closer political union, the kingdoms of Scotland and England remained sovereign states, with their own parliaments, judiciaries, and laws, ruled by James in personal union. He was the longest-reigning monarch of the Kingdom of Scotland.
Portrait attributed to John de Critz, c. 1605
Portrait of James as a boy, after Arnold Bronckorst, 1574
James (right) depicted aged 17 beside his mother, 1583. In reality, they were separated when he was still a baby.
James in 1586, age 20 (attrib. Adrian Vanson or the school of Alonso Sánchez Coello)