diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -159,7 +159,7 @@
     'rsrc/css/phui/phui-formation-view.css' => 'd2dec8ed',
     'rsrc/css/phui/phui-head-thing.css' => 'd7f293df',
     'rsrc/css/phui/phui-header-view.css' => '36c86a58',
-    'rsrc/css/phui/phui-hovercard.css' => '6ca90fa0',
+    'rsrc/css/phui/phui-hovercard.css' => '39fd2e14',
     'rsrc/css/phui/phui-icon-set-selector.css' => '7aa5f3ec',
     'rsrc/css/phui/phui-icon.css' => '4cbc684a',
     'rsrc/css/phui/phui-image-mask.css' => '62c7f4d2',
@@ -855,7 +855,7 @@
     'phui-header-view-css' => '36c86a58',
     'phui-hovercard' => '6199f752',
     'phui-hovercard-list' => 'de4b4919',
-    'phui-hovercard-view-css' => '6ca90fa0',
+    'phui-hovercard-view-css' => '39fd2e14',
     'phui-icon-set-selector-css' => '7aa5f3ec',
     'phui-icon-view-css' => '4cbc684a',
     'phui-image-mask-css' => '62c7f4d2',
diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -5641,6 +5641,7 @@
     'PhrictionEditEngineController' => 'applications/phriction/controller/PhrictionEditEngineController.php',
     'PhrictionHistoryConduitAPIMethod' => 'applications/phriction/conduit/PhrictionHistoryConduitAPIMethod.php',
     'PhrictionHistoryController' => 'applications/phriction/controller/PhrictionHistoryController.php',
+    'PhrictionHovercardEngineExtension' => 'applications/phriction/engineextension/PhrictionHovercardEngineExtension.php',
     'PhrictionInfoConduitAPIMethod' => 'applications/phriction/conduit/PhrictionInfoConduitAPIMethod.php',
     'PhrictionListController' => 'applications/phriction/controller/PhrictionListController.php',
     'PhrictionMarkupPreviewController' => 'applications/phriction/controller/PhrictionMarkupPreviewController.php',
@@ -12539,6 +12540,7 @@
     'PhrictionEditEngineController' => 'PhrictionController',
     'PhrictionHistoryConduitAPIMethod' => 'PhrictionConduitAPIMethod',
     'PhrictionHistoryController' => 'PhrictionController',
+    'PhrictionHovercardEngineExtension' => 'PhabricatorHovercardEngineExtension',
     'PhrictionInfoConduitAPIMethod' => 'PhrictionConduitAPIMethod',
     'PhrictionListController' => 'PhrictionController',
     'PhrictionMarkupPreviewController' => 'PhabricatorController',
diff --git a/src/applications/phriction/engineextension/PhrictionHovercardEngineExtension.php b/src/applications/phriction/engineextension/PhrictionHovercardEngineExtension.php
new file mode 100644
--- /dev/null
+++ b/src/applications/phriction/engineextension/PhrictionHovercardEngineExtension.php
@@ -0,0 +1,121 @@
+<?php
+
+final class PhrictionHovercardEngineExtension
+  extends PhabricatorHovercardEngineExtension {
+
+  const EXTENSIONKEY = 'phriction';
+
+  public function isExtensionEnabled() {
+    return PhabricatorApplication::isClassInstalled(
+      'PhabricatorPhrictionApplication');
+  }
+
+  public function getExtensionName() {
+    return pht('Wiki Documents');
+  }
+
+  public function canRenderObjectHovercard($object) {
+    return ($object instanceof PhrictionDocument);
+  }
+
+  public function renderHovercard(
+    PHUIHovercardView $hovercard,
+    PhabricatorObjectHandle $handle,
+    $object,
+    $data) {
+
+    $viewer = $this->getViewer();
+
+    $project_phids = PhabricatorEdgeQuery::loadDestinationPHIDs(
+      $object->getPHID(),
+      PhabricatorProjectObjectHasProjectEdgeType::EDGECONST);
+
+    $has_projects = (bool)$project_phids;
+    $project_phids = array_reverse($project_phids);
+    $project_handles = $viewer->loadHandles($project_phids);
+
+    $detail_content = array(
+      id(new PHUIIconView())->setIcon('fa-book'),
+    );
+
+    $ancestor_handles = $this->getAncestorHandlesOfDocument($object);
+    if (count($ancestor_handles)) {
+      foreach ($ancestor_handles as $ancestor_handle) {
+        $detail_content[] = phutil_tag(
+          'a',
+          array(
+            'href' => $ancestor_handle->getUri(),
+          ),
+          $ancestor_handle->getName());
+
+        $detail_content[] = id(new PHUIIconView())
+          ->setIcon('fa-angle-right')
+          ->addClass('phui-crumb-divider');
+      }
+      array_pop($detail_content);
+    } else {
+      $detail_content[] = pht('Wiki Document');
+    }
+
+    if ($has_projects) {
+      $list = id(new PHUIHandleTagListView())
+        ->setHandles($project_handles)
+        ->setSlim(true)
+        ->setShowHovercards(false);
+
+      $detail_content[] = $list;
+    }
+
+    $hovercard->setDetail(
+      phutil_tag(
+        'div',
+        array(
+          'class' => 'phui-hovercard-object-type',
+        ),
+        $detail_content));
+
+    $content = $object->getContent();
+
+    if ($content) {
+      $hovercard->addField(
+        pht('Last Author'),
+        $viewer->renderHandle($content->getAuthorPHID()));
+
+      $hovercard->addField(
+        pht('Last Edited'),
+        phabricator_dual_datetime($content->getDateCreated(), $viewer));
+    }
+  }
+
+  private function getAncestorHandlesOfDocument($document) {
+    $viewer = $this->getViewer();
+    $ancestors = $document->getAncestors();
+
+    // Ancestors are only loaded if
+    // PhabricatorPolicyAwareQuery::willFilterPage() is called
+    if (!$ancestors) {
+      $ancestor_slugs = PhabricatorSlug::getAncestry($document->getSlug());
+      $table = new PhrictionDocument();
+      $conn_r = $table->establishConnection('r');
+      $queried_ancestors = queryfx_all(
+        $conn_r,
+        'SELECT * FROM %T WHERE slug IN (%Ls)',
+        $document->getTableName(),
+        $ancestor_slugs);
+      $queried_ancestors = $table->loadAllFromArray($queried_ancestors);
+      $queried_ancestors = mpull($queried_ancestors, null, 'getSlug');
+
+      $ancestors = array();
+      foreach ($ancestor_slugs as $slug) {
+        $ancestor = idx($queried_ancestors, $slug);
+        if ($ancestor) {
+          $ancestors[] = $ancestor;
+        }
+      }
+    }
+
+    $ancestor_phids = mpull($ancestors, 'getPHID');
+    return $viewer->loadHandles($ancestor_phids);
+  }
+
+}
diff --git a/webroot/rsrc/css/phui/phui-hovercard.css b/webroot/rsrc/css/phui/phui-hovercard.css
--- a/webroot/rsrc/css/phui/phui-hovercard.css
+++ b/webroot/rsrc/css/phui/phui-hovercard.css
@@ -115,3 +115,24 @@
 .hovercard-task-view .phui-oi-disabled.phui-workcard {
   background-color: #fff;
 }
+
+.phui-hovercard-object-type  {
+  font-size: 12px;
+}
+
+.phui-hovercard-object-type .phui-icon-view {
+  margin-right: 6px;
+}
+
+.phui-hovercard-object-type .phui-crumb-divider {
+  margin: 0px 6px;
+}
+
+.phui-hovercard-object-type .phabricator-handle-tag-list {
+  margin-top: 10px;
+}
+
+.phui-hovercard-object-type .phabricator-handle-tag-list-item {
+  display: inline-block;
+  margin: 0 4px 2px 0;
+}