Borisz was born on February 5th, 1935.1 Borisz's father was Miklós Guóth and his mother was Emilia Makoviczka. His paternal grandparents were Miklós Guóth and Augusta Krmesky. He had a brother named Svetozar. He was the younger of the two children. He died at the age of 11 on July 9th, 1946.1