St. Demetrius' armour with lilies, Icon, Lahili, Georgia, 12th-13th centuries.
Fig. 18. St. Demetrius' armour with lilies, Lahili
The main point is that the lily (trefoil) ornament is characteristic of Georgian military equipment as well.
For instance, such is St Demetrius' quilted armour with lilies on the l2th-l3th-c. icon of Lahili (fig. 18).
The decoration of the band on the Warrior Saint's shield with lilies on the 12th-c. fresco of Pavnisi is also of considerable interest.
Source: p.98, The Helmet from the Wawel Royal Castle Museum and its Place in the Evolution of Oriental Helmet by Mamuka Tsurtsumia
Other Georgian Illustrations of Costume & Soldiers