Career
Nils Jensen Ytteborg is an only child from a family that originally hailed from the Ytteborg farm in Whitstable, Kent, United Kingdom. His family migrated to Slagelse, Denmark, while he opted to settle in Christiania (now Oslo) to work as a saddler. From humble beginning as a saddler and tanner, Ytteborg thrived in his craft, and even expanded his source of income by venturing into selling timber and distillery. When he had accumulated enough capital, he founded the Ytteborg Brewery in 1836 in Hausmanns street.
By 1842, he became one of Christianaís richest mentor
His brewery was later renamed to Foss Brewery, which he managed from 1845 to 1846. In November 8, 1838, he was instrumental in establishing the Christiana Craftsmen Association to protect the rights and welfare of craftsmen and workers in Christiana, including the initiative to professionalize the ranks.
In 1958 (100 years after his death), the road Garver Ytteborgs vei Haugenstua in Stovner in Oslo was named in memory of him.