diff --git a/data/ontologies/digital-heraldry-ontology-representation.ttl b/data/ontologies/digital-heraldry-ontology-representation.ttl
index 6a5a84cbc01b231ccefa99d540a7319128376c0e..5aa890b7206583529241b9870961c55b3eb87c7a 100644
--- a/data/ontologies/digital-heraldry-ontology-representation.ttl
+++ b/data/ontologies/digital-heraldry-ontology-representation.ttl
@@ -110,10 +110,15 @@ dhor:hasItemID rdf:type owl:ObjectProperty ;
                rdfs:label "hasItemID"@en .
 
 
-###  http://digitalheraldry.org/digital-heraldry-ontology/representation#hasOMAid
-dhor:hasOMAid rdf:type owl:ObjectProperty ;
-              rdfs:domain dhor:CoatOfArmsRepresentation ;
-              rdfs:label "hasOMAid"@en .
+###  http://digitalheraldry.org/digital-heraldry-ontology/representation#hasOMAArmItemID
+dhor:hasOMAArmItemID rdf:type owl:ObjectProperty ;
+                     rdfs:domain dhor:CoatOfArmsRepresentation .
+
+
+###  http://digitalheraldry.org/digital-heraldry-ontology/representation#hasOMABranchID
+dhor:hasOMABranchID rdf:type owl:ObjectProperty ;
+                    rdfs:domain dhor:CoatOfArmsRepresentation ;
+                    rdfs:label "hasOMAid"@en .
 
 
 ###  http://digitalheraldry.org/digital-heraldry-ontology/representation#hasPrimaryBlazon