Flavius Valerius Leo Augustus was Eastern Roman Emperor from 457 to 474. He was a native  of Dacia Aureliana near Thrace, which prompted his nickname 'Thrax' - the Thracian.
As his 20 year reign indicates, he was a capable ruler and worked tirelessly to aid the struggling western part of the Roman Empire. He is also notable for being the first Emperor to legislate in Greek rather than in Latin.
He died of dysentery at the age of 73 on 18 January 474, and was succeeded by his grandson Leo II.
As his 20 year reign indicates, he was a capable ruler and worked tirelessly to aid the struggling western part of the Roman Empire. He is also notable for being the first Emperor to legislate in Greek rather than in Latin.
He died of dysentery at the age of 73 on 18 January 474, and was succeeded by his grandson Leo II.

        Epithet:  Thrax ("the Thracian")
        
                    (1)
                                 Leo I
                            
                
                
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                        An
                        AU
                                        Solidus
                                    
                        struck                             462-466 AD
 in
                                        Constantinopolis
                                    
                    
                
                
                
                                Obverse: diademed, helmeted and cuirassed 3/4 facing bust, spear over shoulder; D N LEO PE_RPET AVG
                            
                            
                                Reverse: Victory standing left with long cross; VICTORI_A AVGGG B / * / CON OB
                            
                            
                            Diameter: 
                                20 mm
                            
Die Orientation: -
Weight: 4.42 g
                            
                        
                        
                        Die Orientation: -
Weight: 4.42 g
No notes for this coin
                        
                                RIC X 605, DOC 528
                        
                    
                    (2)
                                 Leo I
                            
                
                
                 
                
                
                    
                        An
                        AE
                                        Half-Centenionalis
                                    
                        struck                             457-474 AD
 in
                                        Constantinople
                                    
                    
                
                
                
                                Obverse: pearl-didemed draped and cuirassed, bust right; D N LEO P AVG
                            
                            
                                Reverse: lying lion left, head right; CON
                            
                            
                            Diameter: 
                                8 mm
                            
Die Orientation: -
Weight: 0.5 g
                            
                        
                        
                        Die Orientation: -
Weight: 0.5 g
No notes for this coin
                        
                                RIC 674/675
                        
                    
                    (3)
                            Leo I
                            |
                            Verina
                            
                
                
                 
                
                
                
                
                                Obverse: DN LEO (?), Head of Leo right
                            
                            
                                Reverse: Verina standing, facing, holding a transverse scepter "b-E"
                            
                            
                            Diameter: 
                                11 mm
                            
Die Orientation: 0 H
Weight: 1.2 g
                            
                        
                        
                        Die Orientation: 0 H
Weight: 1.2 g
No notes for this coin
                        
                                RIC X 713-718
                        
                    
                    (4)
                            Leo I
                            |
                            Verina
                            
                
                
                 
                
                
                    
                        An
                        AE
                                    11
                                    
                        struck                             an unknown year
 in
                            an unknown location
                    
                
                
                
                                Obverse: D N L-EO, pearl diademed, draped, cuirassed bust right
                            
                            
                                Reverse: Verina standing facing, holding cross on globe and sceptre
                            
                            
                            Diameter: 
                                11 mm
                            
Die Orientation: -
Weight: 1 g
                            
                        
                        
                        Die Orientation: -
Weight: 1 g
No notes for this coin
                        
                                RIC X 714; LRBC 2272; DOC 583; MIRB 30; Sear 21436
                        
                    