Novgorod cross
The Novgorod cross is a type of cross which combines two geometric shapes - cross and circle. It is sometimes considered a variation of the Cross pattée. Often the ends of the cross are completely inscribed in a circle. It is visually similar to the Celtic cross but originated in Eastern Europe rather than the British Isles
Features
This form of cross was common in Novgorod land. In the process of development, by the 15th century, the form of Novgorod crosses changes to a form of "round cross", resembling not so much a cross as a disc with four slits. In other lands and among other traditions this form of cross is rarely used.There is a variety that combines a circle and a cross, the ends of which, projecting beyond the circle, also have cross-shaped ends.