Le Morte d'Arthur

It befell in the days of Uther Pendragon, when he was king of all England, and so reigned, that there was a mighty duke in Cornwall that held war against him long time. And the duke was called the Duke of Tintagil. And so by means King Uther sent for this duke, charging him to bring his wife with him, for she was called a fair lady, and a passing wise, and her name was called Igraine. So when the duke and his wife were come unto the king, by the means of great lords they were accorded both. The king liked and loved this lady well, and he made them great cheer out of measure, and desired to have lain by her. But she was a passing good woman, and would not assent unto the king. And then she told the duke her husband, and said, I suppose that we were sent for that I should be dishonoured; wherefore, husband, I counsel you, that we depart from hence suddenly, that we may ride all night unto our own castle.