Board Thread:Random/@comment-75.196.176.207-20160416002551/@comment-27081137-20160424004214

Though that is a popular fan theory (and a favorite theory of mine), it has not been confirmed that Jewel of Broome is one of Barda and Lindal's children. There is some evidence for that idea, but until it is confirmed in the next book or by the author it cannot be considered canon information.