... beautiful and fair Palace, which was situate upon the river Rhine, they beheld a boat or small barge make toward the shore, drawn by a Swan in a silver chain, the one end fastened about her neck, the other to the vessel; and in it an unknown soldier, a man of a comely personage and graceful presence, who stept upon the shore; which done, the boat guided by the Swan left him, and floated down the river. This man fell afterward in league with a fair gentlewoman, married her, and by her had many children. After some years, the same Swan ... — Poems • Robert Southey
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