Knights of Saint Lazuarus
A legend surrounding King Baldwin IV is that during his coronation in Jerusalem, an eagle dropped onto his head a gold ring with sinople (green) cross embedded. The green cross and color green have been traditionally associated with the Order of Saint Lazarus
https://en.wikipedia.org/wiki/Order_of_Saint_Lazarus
https://en.wikipedia.org/wiki/Grand_Masters_of_the_Order_of_Saint_Lazarus