A Gaullist cross, also called the cross of Lorraine or patriarchal cross, is a cross having two crossbars. A schematic polyomino version of a Gaullist cross is illustrated above.
See alsoCross, Dissection, Papal Cross
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Weisstein, Eric W. "Gaullist Cross." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/GaullistCross.html