László was born in February 1858 in Nagykőrös and his baptism took place there on February 8th, 1858. László's mother was Mária Körtvélyesi. He was an only child. He died at the age of 1 on March 23rd, 1859 in Nagykőrös.1
Death Notes
https://www.familysearch.org/ark:/61903/3:1:3Q9M-CS1C-M3MD-1?i=130&cat=444099 egy éves