Claim: Levente Lengyel was a Hungarian Grandmaster who was born on June 13, 1933.
Evidence: Levente Lengyel (13 June 1933 – 18 August 2014) was a Hungarian chess player, who gained the Grandmaster title in 1964. 
Grandmaster (1933-06-13)13 June 1933
Debrecen, Hungary Hungary