Sequanicus
Could not find Sequanicae in Logeion dictionaries.
Sequanicae Proper-name adjective: feminine genitive singular, Proper-name adjective: feminine vocative plural, Proper-name adjective: feminine nominative plural, Proper-name adjective: feminine dative singular of Sequanicus
Sēquănĭcus et Sēquănus, a, um, Séquanais : Mart. 4, 19, 1 ; Luc. 1, 425.