Get list of entity in 1 N relationship

var entities = CommonClasses.GetEntities.GetEntitiesList(client);
                foreach (var entity in entities)
                {
                    if (entity.LogicalName == combPriEntity.SelectedItem.ToString())
                    {
                        primaryEntityAttrId = entity.PrimaryIdAttribute;

                        // Get Related 
                        RetrieveEntityRequest retrieveBankAccountEntityRequest = new RetrieveEntityRequest
                        {
                            EntityFilters = EntityFilters.Relationships,
                            LogicalName = combPriEntity.SelectedItem.ToString()
                        };
                        RetrieveEntityResponse retrieveBankAccountEntityResponse = (RetrieveEntityResponse)client.Execute(retrieveBankAccountEntityRequest);

                        var oneToNRelationships = retrieveBankAccountEntityResponse.EntityMetadata.OneToManyRelationships;

                        relatedEntityList.Clear();
                        foreach(var re in oneToNRelationships)
                        {
                            relatedEntityList.Add(re.ReferencingEntity);
                            combEntity1.Items.Add(re.ReferencingEntity);
                        }
                    }
                }