diff --git a/src/SAML11/XML/samlp/StatusMessage.php b/src/SAML11/XML/samlp/StatusMessage.php
new file mode 100644
index 0000000..fb722cc
--- /dev/null
+++ b/src/SAML11/XML/samlp/StatusMessage.php
@@ -0,0 +1,60 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SimpleSAML\SAML11\XML\samlp;
+
+use DOMElement;
+use SimpleSAML\Assert\Assert;
+use SimpleSAML\XML\Exception\InvalidDOMElementException;
+use SimpleSAML\XML\StringElementTrait;
+
+/**
+ * Class representing a samlp:StatusMessage element.
+ *
+ * @package simplesaml/SAML11
+ */
+final class StatusMessage extends AbstractSamlpElement
+{
+    use StringElementTrait;
+
+
+    /**
+     * @param string $content
+     */
+    public function __construct(string $content)
+    {
+        $this->setContent($content);
+    }
+
+
+    /**
+     * Validate the content of the element.
+     *
+     * @param string $content  The value to go in the XML textContent
+     * @throws \Exception on failure
+     * @return void
+     */
+    protected function validateContent(string $content): void
+    {
+        Assert::notWhitespaceOnly($content);
+    }
+
+
+    /**
+     * Convert XML into an StatusMessage
+     *
+     * @param \DOMElement $xml The XML element we should load
+     * @return static
+     *
+     * @throws \SimpleSAML\XML\Exception\InvalidDOMElementException
+     *   If the qualified name of the supplied element is wrong
+     */
+    public static function fromXML(DOMElement $xml): static
+    {
+        Assert::same($xml->localName, 'StatusMessage', InvalidDOMElementException::class);
+        Assert::same($xml->namespaceURI, StatusMessage::NS, InvalidDOMElementException::class);
+
+        return new static($xml->textContent);
+    }
+}
diff --git a/tests/resources/xml/samlp_StatusMessage.xml b/tests/resources/xml/samlp_StatusMessage.xml
new file mode 100644
index 0000000..fb086d5
--- /dev/null
+++ b/tests/resources/xml/samlp_StatusMessage.xml
@@ -0,0 +1 @@
+<samlp:StatusMessage xmlns:samlp="urn:oasis:names:tc:SAML:1.0:protocol">Something went wrong</samlp:StatusMessage>
diff --git a/tests/src/SAML11/XML/samlp/StatusMessageTest.php b/tests/src/SAML11/XML/samlp/StatusMessageTest.php
new file mode 100644
index 0000000..74321a8
--- /dev/null
+++ b/tests/src/SAML11/XML/samlp/StatusMessageTest.php
@@ -0,0 +1,57 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SimpleSAML\SAML11\Test\SAML11\XML\samlp;
+
+use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\Attributes\Group;
+use PHPUnit\Framework\TestCase;
+use SimpleSAML\SAML11\XML\samlp\AbstractSamlpElement;
+use SimpleSAML\SAML11\XML\samlp\StatusMessage;
+use SimpleSAML\XML\DOMDocumentFactory;
+use SimpleSAML\XML\TestUtils\SchemaValidationTestTrait;
+use SimpleSAML\XML\TestUtils\SerializableElementTestTrait;
+
+use function dirname;
+use function strval;
+
+/**
+ * Class \SimpleSAML\SAML11\XML\samlp\StatusMessageTest
+ *
+ * @package simplesamlphp/SAML11
+ */
+#[Group('samlp')]
+#[CoversClass(StatusMessage::class)]
+#[CoversClass(AbstractSamlpElement::class)]
+final class StatusMessageTest extends TestCase
+{
+    use SchemaValidationTestTrait;
+    use SerializableElementTestTrait;
+
+    /**
+     */
+    public static function setUpBeforeClass(): void
+    {
+        self::$schemaFile = dirname(__FILE__, 6) . '/resources/schemas/oasis-sstc-saml-schema-protocol-1.1.xsd';
+
+        self::$testedClass = StatusMessage::class;
+
+        self::$xmlRepresentation = DOMDocumentFactory::fromFile(
+            dirname(__FILE__, 5) . '/resources/xml/samlp_StatusMessage.xml',
+        );
+    }
+
+
+    /**
+     */
+    public function testMarshalling(): void
+    {
+        $statusMessage = new StatusMessage('Something went wrong');
+
+        $this->assertEquals(
+            self::$xmlRepresentation->saveXML(self::$xmlRepresentation->documentElement),
+            strval($statusMessage),
+        );
+    }
+}