On the appointed day he waited alone in his chamber and sadly mused: "Where shall I find a king's daughter so fair and yet so distant that I may feign to wish her my wife?"
Just then by his window that looked upon the sea two building swallows came in quarrelling together. Then, startled, they flew out, but had let fall from their beaks a woman's hair, long and fine, and shining like a beam of light.
King Mark took it, and called his barons and Tristan and said: "To please you, lords, I will take a wife; but you must seek her whom I have chosen."
"Fair lord, we wish it all," they said, "and who may she be?"
"Why," said he, "she whose hair this is; nor will I take another."
"And whence, lord King, comes this Hair of Gold; who brought it and from what land?"
"It comes, my lords, from the Lady with the Hair of Gold, the swallows brought it me. They know from what country it came."
Then the barons saw themselves mocked and cheated, and they turned with sneers to Tristan, for they thought him to have counselled the trick. But Tristan, when he had looked on the Hair of Gold, remembered Iseult the Fair and smiled and said this: "King Mark, can you not see that the doubts of these lords shame me? You have designed in vain. I will go seek the Lady with the Hair of Gold. The search is perilous: never the less, my uncle, I would once more put my body and my life into peril for you; and that your barons may know I love you loyally, I take this oath, to die on the adventure or to bring back to this castle of Tintagel the Queen with that fair hair."