The “cross gringoly”, or “cross gringolé”, is a cross couped with two serpent’s heads issuant from each limb. It’s found in the arms of Huyn or Hune, c.1370 [Gelre 76].
Séigíne inghean uí Dhraighnéain bears: Per bend sinister vert and Or, a cross gringolé counterchanged.
David Boot Legg bears: Or, a cross gringolé gules with serpent’s heads vert.