A cross pattée (or "cross patty" or "cross Pate", known also as "cross formée/formy") is a type of Christian cross, which has arms narrow at the center, and often flared in a curve or straight line shape, to be broader at the perimeter. The form appears very early in medieval art, for example in a metalwork treasure binding given to Monza Cathedral by Queen Theodelinda (d. 628), and the 8th century lower cover of the Lindau Gospels in the Morgan Library. An early English example from the start of the age of heraldry proper (i.e. about 1200) is found in the arms of Baron Berkeley.
The word pattée is a French adjective in the feminine form used in its full context as la croix pattée, meaning literally "footed cross", from the noun patte, meaning foot, generally that of an animal. The cross has 4 splayed feet, each akin to the foot, for example, of a chalice or candelabrum. In German it is called Tatzenkreuz from Tatze, foot, paw. Planché provides a dubious suggestion that the term comes from the Latin verb pateo, to lie open, be spread. He states it to be discernible on the standard of King Stephen (1135–1154).
Several variants exist as follows:
With the edges of the arms concave throughout; the "Iron Cross", as generally used on Luftstreitkräfte aircraft in 1915
With less curvature, used on Luftstreitkräfte aircraft into April 1918, and the basis for the similar cross by the Bundeswehr of modern Germany
Bolnisi cross, official national symbol of the republic of Georgia, used on flag, coat of arms and various official and unofficial organizations of this country.