Chapter Yemen to Yue-Laou of Y by Brewer's Phrase & Fable

that no one could cure him but Ysolde, he sent a messenger to Cornwall, and told him if the queen consented to accompany him he was to hoist a white flag. The queen hastened to succour her lover, but Ysolt told her husband that the vessel was coming with a black sail displayed. Sir Tristram, in an agony of despair, fell on his bed and instantly expired. Soon as Ysolde heard thereof, she flung herself on the corpse and died also. King Mark buried the two in one grave, and planted over it a rose-bush and vine, which so intermingled their branches as they grew up that no man could separate them.

Ysolt of the White Hand Daughter of the Duke of Brittany and wife of Sir Tristram. (See above.)

Yue-Laou in Chinese mythology, is the old man of the moon, who unites with a silken cord all predestined couples, áfter which nothing can prevent their union.