Career
He was elected to the Norwegian Parliament in 1904, representing the constituency of Søndre Bergenhus Amt. He had served as a deputy representative during the term 1900–1903, and returned as a deputy in 1913–1915. He represented the Moderate Liberal Party in the first two terms.
Born in Haus, Rongved first had a career in the military before returning to his home island in 1909 to serve as police sergeant in Hammer.
Besides this, he worked as a farmer. He was mayor of Haus for twelve years.