diff --git a/classes/Notice.php b/classes/Notice.php
index e4d10a5bad..44d5adb1b7 100644
--- a/classes/Notice.php
+++ b/classes/Notice.php
@@ -1630,6 +1630,8 @@ class Notice extends Managed_DataObject
             self::blow('reply:stream:%d', $parentauthor->id);
         } catch (NoParentNoticeException $e) {
             // Not a reply, since it has no parent!
+        } catch (NoResultException $e) {
+            // Parent notice was probably deleted
         }
 
         // @todo ideally this parser information would only
@@ -1855,6 +1857,8 @@ class Notice extends Managed_DataObject
                 $ctx->replyToUrl = $reply->getUrl(true);    // true for fallback to local URL, less messy
             } catch (NoParentNoticeException $e) {
                 // This is not a reply to something
+            } catch (NoResultException $e) {
+                // Parent notice was probably deleted
             }
 
             try {
diff --git a/lib/apiaction.php b/lib/apiaction.php
index 3564709e5b..1bd80ad122 100644
--- a/lib/apiaction.php
+++ b/lib/apiaction.php
@@ -330,6 +330,9 @@ class ApiAction extends Action
             $in_reply_to = $parent->id;
         } catch (NoParentNoticeException $e) {
             $in_reply_to = null;
+        } catch (NoResultException $e) {
+            // the in_reply_to message has probably been deleted
+            $in_reply_to = null;
         }
         $twitter_status['in_reply_to_status_id'] = $in_reply_to;
 
diff --git a/lib/implugin.php b/lib/implugin.php
index 742147dbbd..457c9dba52 100644
--- a/lib/implugin.php
+++ b/lib/implugin.php
@@ -364,13 +364,16 @@ abstract class ImPlugin extends Plugin
     protected function formatNotice(Notice $notice)
     {
         $profile = $notice->getProfile();
+        $nicknames = $profile->getNickname();
 
         try {
             $parent = $notice->getParent();
             $orig_profile = $parent->getProfile();
-            $nicknames = sprintf('%1$s => %2$s', $profile->nickname, $orig_profile->nickname);
+            $nicknames = sprintf('%1$s => %2$s', $profile->getNickname(), $orig_profile->getNickname());
         } catch (NoParentNoticeException $e) {
-            $nicknames = $profile->nickname;
+            // Not a reply, no parent notice stored
+        } catch (NoResultException $e) {
+            // Parent notice was probably deleted
         }
 
         return sprintf('%1$s: %2$s [%3$u]', $nicknames, $notice->content, $notice->id);
diff --git a/lib/util.php b/lib/util.php
index 9c37a5e669..a5acd8d86b 100644
--- a/lib/util.php
+++ b/lib/util.php
@@ -725,6 +725,8 @@ function common_find_mentions($text, Notice $notice)
             }
         } catch (NoParentNoticeException $e) {
             // It wasn't a reply to anything, so we can't harvest nickname-relations.
+        } catch (NoResultException $e) {
+            // The parent notice was deleted.
         }
 
         $matches = common_find_mentions_raw($text);
diff --git a/plugins/Xmpp/XmppPlugin.php b/plugins/Xmpp/XmppPlugin.php
index 04101a8e2b..8c700bae8b 100644
--- a/plugins/Xmpp/XmppPlugin.php
+++ b/plugins/Xmpp/XmppPlugin.php
@@ -351,6 +351,9 @@ class XmppPlugin extends ImPlugin
             $xs->text(sprintf(' => %s', $orig_profile->nickname));
         } catch (NoParentNoticeException $e) {
             $xs->text(": ");
+        } catch (NoResultException $e) {
+            // Parent notice was probably deleted.
+            $xs->text(": ");
         }
         if (!empty($notice->rendered)) {
             $notice->rendered = str_replace("\t", "", $notice->rendered);