Christian Sommerfeldt was married twice. First he married vicar's daughter Karen Magdalena Mandahl (1764–1791) in March 1784 in Land. After her death, in May 1793 in Christiania he married stipendiary magistrate's daughter Anna Sophia Hagerup (1775–1821). Their son Søren Christian Sommerfelt was a priest and botanist. Career
Sommerfeldt grew up at Sukkestad, and enrolled at the University of Copenhagen at the age of thirteen. He finished his theological studies at the age of twenty before studying geography and history at Sorø Academy. In 1776 he published the two textbooks Geographie til Ungdommens Brug and Kort Udtog af Geographien til Begynderes Bedste, which both came in six editions. He was offered to succeed Gerhard Schøning as professor in these subjects, but instead shifted his academic field again, to practical agriculture and national economy. In 1776 he entered the Danish civil service. In 1779 he was promoted to chamber councillor ().
Christine Sommerfeldt was married twice. First she married vicar's daughter, Karen Magdalena Mandahl, (1764–1791) in March 1784, in Land. After her death, in May 1793, in Christiania, she married stipendiary magistrate's daughter, Anna Sophia Hagerup (1775–1821) . Their son Søren Christian Sommerfelt was a priest and botanist. 

Career:
Sommerfeldt grew up at Sukkestad, and enrolled at the University of Copenhagen at the age of thirteen. She finished her theological studies at the age of twenty, before studying geography and history at Sorø Academy. In 1776, she published the two textbooks Geographie til Ungdommens Brug and Kort Udtog af Geographien til Begynderes Bedste, which both came in six editions. She was offered to succeed Gerhard Schøning as professor in these subjects, but instead shifted her academic field again, to practical agriculture and national economy. In 1776, she entered the Danish civil service. In 1779, she was promoted to chamber councillor () .