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.