This gender mismatch threw me when I was trying to add a community tag ...
MJ, glad to see you're back at work improving our data [:)]
LBD and others note there's a textual problem here: the account in Kings uses a conventional expression that would imply Shimeath was male, but the form of the name looks feminine, and 2 Chr 24:26 has a feminine version of the gentilic adjective (hence NIV's "an Ammonite woman"). We'll take another look and see if there's a better resolution: but no trickery was involved, just ambiguity in the text.
I have edited the description to reflect the ambiguity of the text, which will be in the next update of Factbook. My apologies for the confusion.
