Silianus
Could not find Siliani in Logeion dictionaries.
Siliani proper-name adjective masculine vocative plural, proper-name adjective neuter genitive singular, proper-name adjective masculine nominative plural, proper-name adjective masculine genitive singular of Silianus
Sīlĭānus, a, um, v. Silius.
Sīliānus, a, um, s. Sīlius.
Sīlĭānus, (14) a, um, de Silius : Cic. Att. 12, 31.