The Zinfandel vines stem from the historic De Ambrogio Ranch, which was razed in 2001 for development in Rancho Cucamonga, California.

Lodi has some of the oldest Zinfandel vines in California.

He claimed that his father, Agoston Haraszthy, imported the Zinfandel vine to California.

Amador County has a high percentage of old Zinfandel vines.

The claim that Haraszthy brought the first Zinfandel vines to California is a subject of controversy.

In his biography of Haraszthy, however, McGinty presents evidence that Haraszthy may well have obtained Zinfandel vines as early as 1852 with the help of Lázár Mészáros, former Hungarian Minister of War and an avid horticulturalist who was then operating a nursery in New Jersey.

The old head-pruned Zinfandel vines are now owned and cultivated by their son, Benito.

A decade later he planted Zinfandel vines on the California property.

Since Slovenia borders Croatia, where cousins of Zinfandel vines are found, this suggests significance in the history of California Zinfandel.

These vines are the oldest surviving Zinfandel vines in California.