Socrates of Constantinople
It is not known how long the Nisan 14 practice lasted. The church historian Socrates of Constantinople knew of quartodecimans who were deprived of their churches by John Chrysostom, and harassed in unspecified ways by Nestorius, both bishops of Constantinople. This indicates that the Nisan 14 practice, or a practice that was called by the same name, lingered into the 4th century.