Though placed so high, Macbeth and his queen could not forget the prophecy of the weird sisters that, though Macbeth should be king, yet not his children, but the children of Banquo, should be kings after him. The thought of this, and that they had defiled their hands with blood, and done so great crimes, only to place the posterity of Banquo upon the throne, so rankled within them that they determined to put to death both Banquo and his son, to make void the predictions of the weird sisters, which in their own case had been so remarkably brought to pass. For this purpose they made a great supper, to which they invited all the chief thanes; and among the rest, with marks of particular respect, Banquo and his son Fleance were invited. The way by which Banquo was to pass to the palace at night was beset by murderers appointed by Macbeth, who stabbed Banquo; but in the scuffle Fleance escaped. From that Fleance descended a race of monarchs who afterward filled the Scottish throne, ending with James the Sixth of Scotland and the First of England, under whom the two crowns of England and Scotland were united.