diff --git a/src/agenda_culturel/models.py b/src/agenda_culturel/models.py
index 3b43a58..09f0d2e 100644
--- a/src/agenda_culturel/models.py
+++ b/src/agenda_culturel/models.py
@@ -424,6 +424,13 @@ class DuplicatedEvents(models.Model):
 
         super().save(*args, **kwargs)
 
+    def get_import_messages(self):
+        msgs = []
+        for e in self.get_duplicated():
+            for m in e.message_set.filter(message_type__in=[Message.TYPE.IMPORT_PROCESS, Message.TYPE.UPDATE_PROCESS]).order_by("date"):
+                msgs.append(m)
+        return msgs
+
 
 class ReferenceLocation(models.Model):
 
@@ -762,6 +769,9 @@ class Event(models.Model):
         super().__init__(*args, **kwargs)
         self.processing_user = None
 
+    def get_import_messages(self):
+        return self.message_set.filter(message_type__in=[Message.TYPE.IMPORT_PROCESS, Message.TYPE.UPDATE_PROCESS]).order_by("date")
+
     def get_consolidated_end_day(self, intuitive=True):
         if intuitive:
             end_day = self.get_consolidated_end_day(False)
diff --git a/src/agenda_culturel/static/style.scss b/src/agenda_culturel/static/style.scss
index d867255..b589711 100644
--- a/src/agenda_culturel/static/style.scss
+++ b/src/agenda_culturel/static/style.scss
@@ -1161,6 +1161,9 @@ article>article {
 .entete-badge {
     grid-template-columns: 2.5em repeat(auto-fit, minmax(0%, 1fr));
     
+    .full-columns {
+        grid-column: 1 / 3;
+    }
     .badge-large {
         @extend .badge-circle;
         font-size: 140%;
diff --git a/src/agenda_culturel/templates/agenda_culturel/duplicate-diff-inc.html b/src/agenda_culturel/templates/agenda_culturel/duplicate-diff-inc.html
index ae92183..4af02a1 100644
--- a/src/agenda_culturel/templates/agenda_culturel/duplicate-diff-inc.html
+++ b/src/agenda_culturel/templates/agenda_culturel/duplicate-diff-inc.html
@@ -17,9 +17,24 @@
                     {% if e.local_version %}<strong>version modifiée localement</strong>{% endif %}
                 </li>
             </ul>
-    </div>
+            {% with e.get_import_messages as messages %}
+            {% if messages|length > 0 %}
+                <div class="full-columns">
+                <h3>Journaux des modifications d'import</h3>
+                <ul>
+                    {% for m in messages %}
+                        <li>
+                            {{ m.date }}, {% if m.message_type %}{{ m.get_message_type_display }}{% endif %}&nbsp;: <a href="{% url 'message' m.pk %}">{{ m.subject }}</a>&nbsp;: <em>{{ m.message }}</em>
+                        </li>
+                    {% endfor %}
+                </ul>
+                </div>
+            {% endif %}
+            {% endwith %}
+        </div>
 {% endfor %}
 </div>
+
 {% for e in object.get_items_comparison %}
     <h3>{% event_field_verbose_name e.key %}</h3>
     {% if e.similar %}
diff --git a/src/agenda_culturel/templates/agenda_culturel/duplicate-inc.html b/src/agenda_culturel/templates/agenda_culturel/duplicate-inc.html
index 0005343..022cf60 100644
--- a/src/agenda_culturel/templates/agenda_culturel/duplicate-inc.html
+++ b/src/agenda_culturel/templates/agenda_culturel/duplicate-inc.html
@@ -4,15 +4,29 @@
 
 
 <article>
-    <header><a href="{% url 'view_duplicate' duplicate.pk %}">
+    <header><h2><a href="{% url 'view_duplicate' duplicate.pk %}">
         {% if duplicate.representative %}Duplication{% else %}Possible duplication{% endif %}
-        &nbsp;:</a> {{ events|length }} événements le {{ events.0.start_day }}
+        &nbsp;:</a> {{ events|length }} événements le {{ events.0.start_day }}</h2>
     </header>
+    <h3>Versions</h3>
     <ul>
-    {% for e in events %}
-        <li>{{ e.start_day }}{% if e.start_time %} à {{ e.start_time }}{% endif %}&nbsp;: {{ e|picto_status }} <a href="{{ e.get_absolute_url }}">{{ e.title }}</a> créé le {{ e.created_date }}</li>
+        {% for e in events %}
+        <li>{{ e.start_day }}{% if e.start_time %} à {{ e.start_time }}{% endif %}&nbsp;: {{ e|picto_status }} <a href="{{ e.get_absolute_url }}">{{ e.title }}</a>{% if e.modified_date %} dernière modification le {{ e.modified_date }}{% else %}créé le {{ e.created_date }}{% endif %}</li>
     {% endfor %}
     </ul>
+    {% with duplicate.get_import_messages as messages %}
+    {% if messages|length > 0 %}
+    <h3>Messages d'import et de mise à jour</h3>
+    <ul>
+        {% for m in messages %}
+            <li>
+                {{ m.date }}, {% if m.message_type %}{{ m.get_message_type_display }}{% endif %}&nbsp;: <a href="{% url 'message' m.pk %}">{{ m.subject }}</a>
+                pour événement <a href="{{ obj.related_event.get_absolute_url }}">{{ m.related_event.pk }}</a>&nbsp;: <em>{{ m.message }}</em>
+            </li>
+        {% endfor %}
+    </ul>
+    {% endif %}
+    {% endwith %}
     {% if perms.agenda_culturel.change_duplicatedevents %}
     <footer class="infos-and-buttons">
         <div class="infos"></div>