The white grape variety (also Freiburg 250-75) is a new breed between Merzling x GM 6494 (see there the genesis). They are genes of Vitis amurensis. Vitis lincecumii. Vitis rupestris and Vitis vinifera contain. The intersection of hybrid was made in 1975 by Norbert Becker (1937-2012) at the State Wine Institute in Freiburg, The name was in honor of the German wine pioneer Johann Philipp Bronner (1792-1864) awarded. She is not allowed with the variety White Bronnertraube be confused.