A different second marriage for Philippe Auguste

Treaty of Rouen
After the issues between Richard and Philippe Auguste, the two would settle their own difference and create a peace treaty on the autumn of 1195.
-Issoudun, Graçay, and the fief of André de Chauvigny in Berry were to be removed from Angevin suzerainty and put directly into that of France.
-The French lands of Richard I are recognized as Fiefs of Philip II of France.
-Flanders and the County of Boulogne are fiefs of the Kingdom of France not the King of England
-Richard I is recognized as the Suzerain of the Duchy of Brittany.
The treaty would be sealed by the marriage of Eleanor of Brittany and Louis, the son of Philip II of France with the dowry of 20,000 marks sterling as her dowry and Philip II.

Louis VIII and Eleanor of Brittany
On 1195, Louis of France would marry Eleanor of Brittany to seal the treaty of Rouen for peace between Richard I and Philip II of England.
On 1202, Louis of France would consummate his marriage with Eleanor of Brittany, the marriage between Louis the Lion and Eleanor of Brittany would be beneficial to France due to the annexation of the Plantagenet lands in the continent, especially after his ascension as King Louis VIII on 1223, Eleanor of Brittany would have the temper of the Plantagenets which would affect Louis the Lion and would be inherited by his own issue with her.
Eleanor of Brittany and Louis VIII would have the following issue
Constance of France b. January 10, 1203 – 1240 m. Theobald I of Navarre
Philip of France b. June 4, 1205 d. 1215
Louis IX of France b. April 25, 1210 d. 1270 married to Mahaut of Boulogne – no issue
Geoffrey, Count of Provence b. November 11, 1214 – 1260 married to Margaret, Countess of Provence
Robert, Count of Artois b. September 25, 1216 d. 1250
Isabelle b. March 1220
Charles, Duke of Anjou b. December 20, 1223 - 1285

Ingeborg of Denmark
On 1193, Ingeborg and her brother Canute would see the failure of the marriage negotiations between her and Philip II of France and married her to Welf, related his wife, which the future Otto IV, On 1195, Otto, the nephew of Richard the Lionheart would marry Ingeborg of Denmark in exchange of their support against the Hohenstauffens and that would help Otto IV’s election as the Holy Roman Emperor, the Danes continue their own alliance with the Welfs.
Ingeborg of Denmark would give birth to two surviving children, namely, Henry on 1198 and a daughter named Maria on 1200 for her own husband, Otto IV, she would die on 1204, when he would marry Maria of Brabant who would be his second who would not produce any surviving issue.

Albigensian Crusade
Joan of England would take the veil after her return to England in the Fontravraud Abbaye in Anjou, France.
On 1193, as a part of the pact between the House of Toulouse and the Capets, Raymond VI would marry Alice of France, Richard I’s old betrothed but the marriage would only result in a daughter named Margaret of Toulouse in 1198, she would die in 1199.
On 1213, the Albigensian heresy had spread in the county of Toulouse forcing Simon de Montfort to fight Raymond VI, and he would defeat Raymond VI but Raymond VI and Peter II of Aragon would remarry to Marie of France after the death of Marie of Montpellier, Margaret of Toulouse would end up marrying a Roman aristocrat after their exile in Rome after the Albigensian Crusade, she would die with her child after giving birth of her child.
Philip II would claim Toulouse as a reverted fief and inheritance of his wife, Constance after Simon de Montfort sold his own conquests.
On 1213, Aragon would decide not to give the heretics in the South of France a refuge and instead decided to expel them in his lands and his vassals lands forcing them to North of Italy.

Sanchia of Aragon, Queen of Sicily
On 1206, Constance, the Dowager Queen of Hungary would decide to take the veil as a nun and suggested that her sister, Sanchia would be the one who would marry Frederick of Sicily, she would embark on a journey and marry Frederick I of Sicily in order to help an annulment to the marriage of Peter the Catholic which would end in the death of Maria of Montpellier in 1210 and he would remarry to Marie of France.
On 1209, Sanchia of Aragon would marry Frederick of Sicily, she would give birth to a son named Henry(1211) and a daughter named Beatrice(1213), she would die of Malaria on 1218 and Frederick would remarry to Maria of Brunswick, the daughter of Otto IV as the successor of Philip I of HRE.

Latin Empire and Philip I, the Holy Roman Emperor
On 1204, the Duke of Flanders would be made the King of the Latin Empire after the sack of Constantinople after the death of the rival Angeloi Claimant, Alexios Angelos which would be the start of the formation of the Latin Empire, the claims were supported by Philip, the King of the Romans who is a relative of his via his own wife, Irene Angelina.
On 1204, Baldwin, of Flanders and VI Hainaut would be crowned as the Latin Emperor establishing the Latin Empire beginning the Frankokratia in the lands of the Eastern Roman Empire.
The former Eastern Roman Empire would be ruled by the Latins except for the Empire of Nicaea and the Despotate of Epirus which would both vie for the claim of the claimant to the successor of the Eastern Roman Empire.
On 1214, Philip I would prevail against Otto IV but he would marry his daughter, Beatrice to Henry of Brunswick, the son of Otto IV, Beatrice would die on 1217 and Henry of Brunswick would predecease his father on 1220, he would not have any sons and he would die on 1223 being replaced by his nephew, Frederick II who would come from Sicily on 1214 as he would have secured his own place as the successor of Philip II.
His line would continue in the lines of Maria(1199) who married Henry II of Brabant, Kunigunde(1200) who married Wenceslaus of Bohemia, Elizabeth/Beatrice of Swabia, who married Ferdinand III of Castile.

Joanna of Flanders and Henry III
On 1228, after the death of her first husband, Ferdinand of Portugal, despite giving birth to a daughter named Mary, Joan I of Flanders would take Henry III of England as her own husband bringing in Flanders and Hainault to the rule of the Plantagenets, the age gap did not matter to her since she remembered her common great grandmother with Henry III, Eleanor of Aquitaine having issue in her second marriage despite her own age, the marriage of Henry III’s sister to Frederick II of HRE would have made this marriage feasible as Frederick II would have allowed this marriage and also her daughter Mary of Flanders and Portugal would have married Otto III, Count of Burgundy creating a link between Flanders and the Free County of Burgundy.
Joanna of Flanders and Henry III would ally with Conan V against the French, betrothing and later marrying their oldest daughter, Margaret(1231) with Arthur II of Brittany(1223), son of Conan V and Berengaria of Portugal.
The marriage would be blessed by many children, namely, Edward(1230), Margaret, Duchess of Brittany(1231), Joanna, Queen of Scotland, wife of Alexander III of Scotland(1233), and Edmund(1236).