 He served only one term.Born in Ålesund, he was a great-grandson of a Jens Landmark (1772–1811), brother of Andreas (1769–1839) and Nils Landmark (1775–1859) and uncle of Jens Landmark (1811–1880).Mikal Landmark mainly worked as a local police sergeant, in Aure, following in his father's footsteps.