diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/raw/MigrateDbEntitiesApplication.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/raw/MigrateDbEntitiesApplication.java
index d78732f9b..29df17f1b 100644
--- a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/raw/MigrateDbEntitiesApplication.java
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/raw/MigrateDbEntitiesApplication.java
@@ -186,6 +186,9 @@ public class MigrateDbEntitiesApplication extends AbstractMigrationApplication i
 
 					log.info("Processing Openorgs Merge Rels...");
 					smdbe.execute("queryOpenOrgsSimilarityForProvision.sql", smdbe::processOrgOrgMergeRels);
+
+					log.info("Processing Openorgs Parent/Child Rels...");
+					smdbe.execute("queryParentChildRelsOpenOrgs.sql", smdbe::processOrgOrgParentChildRels);
 					break;
 
 				case openaire_organizations:
@@ -689,6 +692,31 @@ public class MigrateDbEntitiesApplication extends AbstractMigrationApplication i
 		}
 	}
 
+	public List<Oaf> processOrgOrgParentChildRels(final ResultSet rs) {
+		try {
+			final DataInfo info = prepareDataInfo(rs); // TODO
+
+			final String orgId1 = createOpenaireId(20, rs.getString("source"), true);
+			final String orgId2 = createOpenaireId(20, rs.getString("target"), true);
+
+			final List<KeyValue> collectedFrom = listKeyValues(createOpenaireId(10, rs.getString("collectedfromid"), true), rs.getString("collectedfromname"));
+
+			final Relation r = new Relation();
+			r.setRelType(ORG_ORG_RELTYPE);
+			r.setSubRelType(ModelConstants.RELATIONSHIP);
+			r.setRelClass(rs.getString("reltype").equalsIgnoreCase("parent") ? ModelConstants.IS_PARENT_OF : ModelConstants.IS_CHILD_OF);
+			r.setSource(orgId1);
+			r.setTarget(orgId2);
+			r.setCollectedfrom(collectedFrom);
+			r.setDataInfo(info);
+			r.setLastupdatetimestamp(lastUpdateTimestamp);
+
+			return Arrays.asList(r);
+		} catch (final Exception e) {
+			throw new RuntimeException(e);
+		}
+	}
+
 	public List<Oaf> processOrgOrgSimRels(final ResultSet rs) {
 		try {
 			final DataInfo info = prepareDataInfo(rs); // TODO
diff --git a/dhp-workflows/dhp-graph-mapper/src/main/resources/eu/dnetlib/dhp/oa/graph/sql/queryParentChildRelsOpenOrgs.sql b/dhp-workflows/dhp-graph-mapper/src/main/resources/eu/dnetlib/dhp/oa/graph/sql/queryParentChildRelsOpenOrgs.sql
new file mode 100644
index 000000000..388fee3f5
--- /dev/null
+++ b/dhp-workflows/dhp-graph-mapper/src/main/resources/eu/dnetlib/dhp/oa/graph/sql/queryParentChildRelsOpenOrgs.sql
@@ -0,0 +1,13 @@
+SELECT
+	id1                                                            AS source,
+	id2                                                            AS target,
+	reltype                                                        AS type,
+	false                                                          AS inferred,
+	false                                                          AS deletedbyinference,
+	0.95                                                           AS trust,
+	''                                                             AS inferenceprovenance,
+	'openaire____::openorgs'                                       AS collectedfromid,
+	'OpenOrgs Database'                                            AS collectedfromname,
+	'sysimport:crosswalk:entityregistry@@@dnet:provenance_actions' AS provenanceaction
+FROM relationships
+WHERE reltype = 'Child' OR reltype = 'Parent'
\ No newline at end of file