What is "merzling"

Merzling is a white grape variety used for wine. It was bred in 1960 by Johannes Zimmermann at the viticultural institute in Freiburg, Germany by crossing Seyve-Villard 5276 with the cross Riesling x Pinot gris.

The variety was initially known under its breeding code FR 993-60, and was later named after Merzhausen, a location on the southern edge of Freiburg where some of the vineyards of the institute are located. It received varietal protection in 1993.