Thomas Bartholin [SEP] father
made significant contributions to anatomical science and medicine in the 17th and 18th centuries: Thomas Bartholin's father, Caspar Bartholin the Elder (1585–1629), his brother Rasmus Bartholin (1625–1698), and his son Caspar Bartholin the Younger (1655–1738). Thomas Bartholin's son Thomas Bartholin the Younger (1659–1690) became a professor of history at the University of Copenhagen and was later appointed royal antiquarian and secretary to the Royal Archives.
Personal life.
Thomas Bartholin was the second of the six sons of Caspar Bartholin the Elder
three years later, in 1683, went to Denmark (with his father, who was part of a trade lobbying contingent) to study at the University of Copenhagen. There he earned the degree of "attestus theologiæ" after two years, and also became an assistant to the Royal Antiquarian, Thomas Bartholin, helping him prepare his "Antiquitates danicæ" and transcribing, translating, and annotating thousands of pages of Icelandic material. 
After Bartholin's death in 1690, Árni became librarian and secretary to a Danish statesman, Matthias