diff --git a/Classes/Hooks/Datahandler/CommandMapPostProcessingHook.php b/Classes/Hooks/Datahandler/CommandMapPostProcessingHook.php
index abbff152..32b2e7ef 100644
--- a/Classes/Hooks/Datahandler/CommandMapPostProcessingHook.php
+++ b/Classes/Hooks/Datahandler/CommandMapPostProcessingHook.php
@@ -45,36 +45,34 @@ public function processCmdmap_postProcess(string $command, string $table, $id, $
             $this->copyOrMoveChildren($id, (int)$value, (int)$dataHandler->copyMappingArray['tt_content'][$id], 'copy', $dataHandler);
         } elseif ($table === 'tt_content' && $command === 'move') {
             $this->copyOrMoveChildren($id, (int)$value, $id, 'move', $dataHandler);
-        } elseif ($table === 'tt_content' && ($command === 'localize' || $command === 'copyToLanguage')) {
-            $this->localizeOrCopyToLanguage($id, (int)$value, $command, $dataHandler);
+        } elseif ($table === 'tt_content' && $command === 'localize') {
+            $this->localizeChildren($id, (int)$value, $command, $dataHandler);
+        } elseif ($table === 'tt_content' && $command === 'copyToLanguage') {
+            $this->copyToLanguageChildren($id, (int)$value, $command, $dataHandler);
         }
     }
 
-    protected function localizeOrCopyToLanguage(int $uid, int $language, string $command, DataHandler $dataHandler): void
+    protected function copyToLanguageChildren(int $uid, int $language, string $command, DataHandler $dataHandler): void
     {
         try {
             $container = $this->containerFactory->buildContainer($uid);
             $last = $dataHandler->copyMappingArray['tt_content'][$uid] ?? null;
-            if ($command === 'copyToLanguage') {
-                $containerId = $last;
-                $pos = $this->containerService->getAfterContainerElementTarget($container);
-                // move next record after last child
-                $cmd = ['tt_content' => [$last => [
-                    'move' => [
-                        'target' => $pos,
-                        'action' => 'paste',
-                        'update' => [],
-                    ]
-                ]]];
-                $localDataHandler = GeneralUtility::makeInstance(DataHandler::class);
-                $localDataHandler->enableLogging = $dataHandler->enableLogging;
-                $localDataHandler->start([], $cmd, $dataHandler->BE_USER);
-                $localDataHandler->process_cmdmap();
-            } else {
-                $containerId = $container->getUid();
-            }
+            $containerId = $last;
+            $pos = $this->containerService->getAfterContainerElementTarget($container);
+            // move next record after last child
+            $cmd = ['tt_content' => [$last => [
+                'move' => [
+                    'target' => $pos,
+                    'action' => 'paste',
+                    'update' => [],
+                ]
+            ]]];
+            $localDataHandler = GeneralUtility::makeInstance(DataHandler::class);
+            $localDataHandler->enableLogging = $dataHandler->enableLogging;
+            $localDataHandler->start([], $cmd, $dataHandler->BE_USER);
+            $localDataHandler->process_cmdmap();
             $children = $container->getChildRecords();
-            foreach ($children as $colPos => $record) {
+            foreach ($children as $record) {
                 $cmd = ['tt_content' => [$record['uid'] => [$command => $language]]];
                 $localDataHandler = GeneralUtility::makeInstance(DataHandler::class);
                 $localDataHandler->enableLogging = $dataHandler->enableLogging;
@@ -104,6 +102,23 @@ protected function localizeOrCopyToLanguage(int $uid, int $language, string $com
         }
     }
 
+    protected function localizeChildren(int $uid, int $language, string $command, DataHandler $dataHandler): void
+    {
+        try {
+            $container = $this->containerFactory->buildContainer($uid);
+            $children = $container->getChildRecords();
+            foreach ($children as $record) {
+                $cmd = ['tt_content' => [$record['uid'] => [$command => $language]]];
+                $localDataHandler = GeneralUtility::makeInstance(DataHandler::class);
+                $localDataHandler->enableLogging = $dataHandler->enableLogging;
+                $localDataHandler->start([], $cmd, $dataHandler->BE_USER);
+                $localDataHandler->process_cmdmap();
+            }
+        } catch (Exception $e) {
+            // nothing todo
+        }
+    }
+
     protected function copyOrMoveChildren(int $origUid, int $newId, int $containerId, string $command, DataHandler $dataHandler): void
     {
         try {
diff --git a/Tests/Functional/Datahandler/Localization/Fixtures/Localize/LocalizeNestedContainerKeepsDefaultLanguageParent.csv b/Tests/Functional/Datahandler/Localization/Fixtures/Localize/LocalizeNestedContainerKeepsDefaultLanguageParent.csv
new file mode 100644
index 00000000..49ea9758
--- /dev/null
+++ b/Tests/Functional/Datahandler/Localization/Fixtures/Localize/LocalizeNestedContainerKeepsDefaultLanguageParent.csv
@@ -0,0 +1,9 @@
+"pages"
+,"uid","pid","title","slug","sys_language_uid","l10n_parent","l10n_source"
+,1,0,"page-1","/",,,
+,2,0,"page-1-language-1","/",1,1,1
+"tt_content"
+,"uid","pid","CType","header","sorting","sys_language_uid","colPos","tx_container_parent"
+,1,1,"b13-2cols-with-header-container","container",64,0,0,0
+,2,1,"b13-2cols-with-header-container","nested-container",128,0,201,1
+,3,1,"header","child",256,0,201,2
diff --git a/Tests/Functional/Datahandler/Localization/Fixtures/Localize/LocalizeNestedContainerKeepsDefaultLanguageParentResult.csv b/Tests/Functional/Datahandler/Localization/Fixtures/Localize/LocalizeNestedContainerKeepsDefaultLanguageParentResult.csv
new file mode 100644
index 00000000..469e3b99
--- /dev/null
+++ b/Tests/Functional/Datahandler/Localization/Fixtures/Localize/LocalizeNestedContainerKeepsDefaultLanguageParentResult.csv
@@ -0,0 +1,8 @@
+"tt_content"
+,"uid","pid","CType","header","sorting","sys_language_uid","colPos","tx_container_parent"
+,1,1,"b13-2cols-with-header-container","container",64,0,0,0
+,2,1,"b13-2cols-with-header-container","nested-container",128,0,201,1
+,3,1,"header","child",256,0,201,2
+,4,1,"b13-2cols-with-header-container","[Translate to german:] container",96,1,0,0
+,5,1,"b13-2cols-with-header-container","[Translate to german:] nested-container",192,1,201,1
+,6,1,"header","[Translate to german:] child",224,1,201,2
diff --git a/Tests/Functional/Datahandler/Localization/LocalizeTest.php b/Tests/Functional/Datahandler/Localization/LocalizeTest.php
index 877a6425..a81398bf 100644
--- a/Tests/Functional/Datahandler/Localization/LocalizeTest.php
+++ b/Tests/Functional/Datahandler/Localization/LocalizeTest.php
@@ -78,6 +78,24 @@ public function localizeContainerLocalizeChildren(): void
         self::assertCSVDataSet(__DIR__ . '/Fixtures/Localize/LocalizeContainerLocalizeChildrenResult.csv');
     }
 
+    /**
+     * @test
+     */
+    public function localizeNestedContainerKeepsDefaultLanguageParent(): void
+    {
+        $this->importCSVDataSet(__DIR__ . '/Fixtures/Localize/LocalizeNestedContainerKeepsDefaultLanguageParent.csv');
+        $cmdmap = [
+            'tt_content' => [
+                1 => [
+                    'localize' => 1,
+                ],
+            ],
+        ];
+        $this->dataHandler->start([], $cmdmap, $this->backendUser);
+        $this->dataHandler->process_cmdmap();
+        self::assertCSVDataSet(__DIR__ . '/Fixtures/Localize/LocalizeNestedContainerKeepsDefaultLanguageParentResult.csv');
+    }
+
     /**
      * @test
      */