Fealty

From SuspireWiki

(n., formal)

The sworn loyalty between a vassal and a lord; also, the oath itself. Among the Damned, the oxymoronic phrase “secret fealty” sometimes is used. Although, formally, fealty requires some degree of open declaration (typically homage) or acknowledgement (such as a land grant or title), in practice some devoted but clandestine relationships are also described as fealty. “My fealty is to you, sire, not that Prince.”