Based on the 1893 play Der Andere by Paul Lindau.

Hot on the heels of Dinero ed Amore, Loyalty of Love was the second of two Guido Brignone-directed films released within same week. Like the earlier picture, Loyalty is a historical drama. During the period in which Italy was under Austrian rule, Count Federico (Nerio Bernardi) fights tirelessly to free his people from oppression. The Count's wife Teresa (Marta Alba) remains loyally by his side, even when he is unfaithful to her, which is often. Federico doesn't realize how important Teresa is to him, nor how much he loves her, until it's almost too late. At time of the release of Loyalty of Love, star Marta Alba had transferred her base of operations to New York, where she starred in Broadway production of Tovarich.