For this Felix Konstantin there are 2 different names on Yasni.
In the ranking of the most common first names Felix Konstantin is on position 4589.
Male first name (English, German, Romanian): Felix, the fortunate, the successful, Latin (Roman epithet); felix = happy, originally a Roman epithet in the sense of a wish, so far contributed 5 popes named Felix Male first name (Latin): Felix, the fortunate, the successful;; felix = happy, originally a Roman epithet in the sense of a wish, so far contributed 5 popes named Felix
Male first name (German, Russian, Hungarian, Bulgarian): Constantine, the Steadfast, Latin (Roman epithet); constare = stand up, by a Roman nickname of 'Constantine' back, spread by the name of the Roman Emperor Constantine the Great (3rd / 4C)