diff --git a/app/dbinit.py b/app/dbinit.py
index b90133b..831f3f7 100644
--- a/app/dbinit.py
+++ b/app/dbinit.py
@@ -8,10 +8,10 @@ with the pymongo library.
 """
 import urllib.parse
 
+from unidecode import unidecode # to remove accents in house and prince names in the urls
 from pymongo import MongoClient
 
 from .config import dbadmin, dbpassword, server_ip
-from .helper import normalize_trigrams
 
 # ______________________________________________________________________________
 # database connexion
@@ -36,7 +36,9 @@ helpers = actesdb["helpers"]
 # storage extractor utilities
 
 def make_acteid_from_route(house=None, prince=None, date_and_item=None):
-    "/acte/Anjou/Isabelle_i/1441_08_05a -> anj_isa_i_1441_08_05a"
+    """
+    /acte/Anjou/Isabelle_i/1441_08_05a -> anj_isa_i_1441_08_05a
+    """
     return "_".join([trigram_house(house), bigram_prince(prince), date_and_item])
 
 
@@ -72,10 +74,17 @@ def extract_prince_in_house(house, prince_code):
         if pr['prince_code'] == prince_code:
             return pr
 
+def normalize_trigrams(trigram):
+    """normalizes names, usefull for the uris routes
+
+    sample: Alençon -> Alencon
+            Orléans -> Orleans
+    """
+    return {unidecode(value):key for key, value in trigram.items()}
 
 # ______________________________________________________________________________
 # in memory storage extracted 'meta' informations upon the database
-# TODO: if it takes too much time at launch, put it in something like
+# TODO: if it takes too much time at startup, jsut put it in something like
 # a `flask init` procedure
 
 helpers_dicts = helpers.find_one()
@@ -83,10 +92,13 @@ house_trigram = helpers_dicts["house_trigram"]
 prince_bigram = helpers_dicts["prince_bigram"]
 princes_in_houses = extract_princes_in_houses()
 
+
+
 """
 house_trigram sample:
 {'Alencon': 'alb', 'Anjou': 'anj', 'Armagnac': 'arm', 'Bourbon': 'brb', 'Bretagne': 'bre', 'Bourgogne': 'brg', 'Berry': 'bry', 'Orleans': 'orl', 'Savoie': 'sav'}
 """
+
 house_trigram = normalize_trigrams(house_trigram)
 """
 prince_bigram sample: 
diff --git a/app/helper.py b/app/helper.py
index 1f691c6..2239077 100644
--- a/app/helper.py
+++ b/app/helper.py
@@ -2,7 +2,6 @@
 
 TODO: maybe all these calculations are to be put in the db storage
 """
-from unidecode import unidecode # to remove accents in house and prince names in the urls
 
 def make_timeitem_from_filename(filename):
     """
@@ -11,14 +10,6 @@ def make_timeitem_from_filename(filename):
     trs_fname = filename.split('_')
     return "_".join(trs_fname[3:])
 
-def normalize_trigrams(trigram):
-    """normalizes names, usefull for the uris routes
-
-    sample: Alençon -> Alencon
-            Orléans -> Orleans
-    """
-    return {unidecode(value):key for key, value in trigram.items()}
-
 #from flask import abort
 #
 #def find_one_or_404(collection, **kwargs):
diff --git a/app/routes.py b/app/routes.py
index 8bf837e..10e9afb 100644
--- a/app/routes.py
+++ b/app/routes.py
@@ -110,12 +110,18 @@ def prince_corpus(house=None, prince=None):
             }
             ]))
     transformed_query = [pr['_id'] for pr in query]
+    invert_prince_bigram = {val: key for key, val in prince_bigram.items()}
+    #print(invert_prince_bigram)
+
     # constructing the dateitem
     for trs in transformed_query:
-        trs['timeitem'] = make_timeitem_from_filename(trs['filename'])
-         
+        trs['dateitem'] = make_timeitem_from_filename(trs['filename'])
+        bigram, number = trs['prince_code'].split('_')
+        long_prince_bigram = inverted_prince_bigram(bigram) + '_' + number
+    
+
     return render_template("prince_corpus.html", house=house, duke_name=prince_long_name,
-                           prince_code=prince_code.capitalize(), actes=transformed_query)
+                           prince_name=long_prince_bigram.capitalize(), actes=transformed_query)
 
 @main.route("/acte/<house>/<prince>/<dateitem>")
 def acte(house=None, prince=None, dateitem=None):
@@ -132,7 +138,7 @@ def acte(house=None, prince=None, dateitem=None):
     """
     filestem = make_acteid_from_route(house, prince, dateitem)
     result = actecol.find_one({'_id': filestem})
-    return render_template("acte.html", house=house, prince=prince,
+    return render_template("acte.html", house=house, prince=result.get('prince_code'),
         #infos=None, place=None, doc=None, arch=None,
         #diplo=diplo_t[0].replace("_", " "), state=state[0],
         output_doc=result.get('xmlcontent'), name_prince=result.get("prince_name"),
diff --git a/app/templates/prince_corpus.html b/app/templates/prince_corpus.html
index 29a2fc3..ffeed02 100644
--- a/app/templates/prince_corpus.html
+++ b/app/templates/prince_corpus.html
@@ -16,7 +16,7 @@
                     <h3>{{ acte['date'] }}</h3>
                 </div>
                 <div class="pboly">
-                    <p class="chrono-p font-weight-bold"><a href="{{url_for('main.acte', house=house, prince=prince_code, dateitem=dateitem)}}">{{ acte['analysis'] }}.</a></p>
+                    <p class="chrono-p font-weight-bold"><a href="{{url_for('main.acte', house=house.capitalize(), prince=prince_name, dateitem=acte['dateitem'])}}">{{ acte['analysis'] }}.</a></p>
                     <p style="margin-bottom: 5%">
                         {% if acte['place'] != 'NS' %}
                             <span class="badge badge-pill badge" style="background-color: #284AA7; color: white; font-size: small;">{{ acte['place'] }}</span>