One Hour (1917)

Opal, who knows nothing about her ancestors, falls in love with G. D. Stanley, the strange young man who is her closest neighbor in the Canadian wilderness. One day, Opal is informed that she is really the princess of a small country and must return to her native land to marry the neighboring king to save her people from invasion. Opal decides to sacrifice her love for Stanley, but before she departs, she spends one hour alone in his cabin. On the eve of her wedding to the dissolute king, it is discovered that Stanley is actually Stanlai, heir-apparent to the throne. When the drunken king attempts to attack Opal in her boudoir, Stanlai kills him, thereby becoming the ruler of his country, and Opal becomes his queen.