diff --git a/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/Comment.php b/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/Comment.php
index 0d64da0fc..18b5bd38d 100644
--- a/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/Comment.php
+++ b/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/Comment.php
@@ -51,7 +51,7 @@ class Comment implements TrackCreationInterface, TrackUpdateInterface
      * @ORM\ManyToOne(
      *     targetEntity="Chill\PersonBundle\Entity\AccompanyingPeriod",
      *     inversedBy="comments")
-     * @ORM\JoinColumn(nullable=false)
+     * @ORM\JoinColumn(nullable=false, onDelete="CASCADE")
      */
     private $accompanyingPeriod;
 
diff --git a/src/Bundle/ChillPersonBundle/migrations/Version20210525211214.php b/src/Bundle/ChillPersonBundle/migrations/Version20210525211214.php
new file mode 100644
index 000000000..15df9386e
--- /dev/null
+++ b/src/Bundle/ChillPersonBundle/migrations/Version20210525211214.php
@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Chill\Migrations\Person;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Specify ON DELETE behaviour to handle deletion of parents in associated tables
+ */
+final class Version20210525211214 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Specify ON DELETE behaviour to handle deletion of parents in associated tables';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE chill_person_accompanying_period_comment DROP CONSTRAINT FK_CD960EF3D7FA8EF0');
+        $this->addSql('ALTER TABLE chill_person_accompanying_period_comment ADD CONSTRAINT FK_CD960EF3D7FA8EF0 FOREIGN KEY (accompanyingPeriod_id) REFERENCES chill_person_accompanying_period (id) ON DELETE CASCADE NOT DEFERRABLE INITIALLY IMMEDIATE');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE chill_person_accompanying_period_comment DROP CONSTRAINT fk_cd960ef3d7fa8ef0');
+        $this->addSql('ALTER TABLE chill_person_accompanying_period_comment ADD CONSTRAINT fk_cd960ef3d7fa8ef0 FOREIGN KEY (accompanyingperiod_id) REFERENCES chill_person_accompanying_period (id) NOT DEFERRABLE INITIALLY IMMEDIATE');
+    }
+}