According to my CZ family Matej is Matthew..My Grandfather was Jan and when he came to the USA, It was John. I too have found in my research that the names were so badly mis spelled. I believe maybe when the ancestors came to the USA, they may have been afraid to make corrections.My ancestors were Ceresnaks,and if you ever saw how this name was mis-spelled. I had such a hard time tracing back. My grandmother was last name Ruza, and that too was a mess. I still have not found info on her....Libby