The documentary "The King of the Vineyards" was made for the 185th anniversary of the birth of János Mathiasz, the world-famous scientist, grape breeder and winemaker, which pays tribute to the work of the great grape breeder. With his self-sacrificing work, János Mathiasz contributed to the development of viticulture and winemaking culture in Hungary, and he gained world fame in the field of grape growing and breeding. It is thanks to him that he saved the world's wine regions from grape root rot (phylloxera) and bred nearly 3,700 grape varieties. His legend is unique, he won more than two hundred world competitions with his wines and table grapes. His biography was included in the Hungarian National Archives i