How could the Albigensian Crusade have collapsed?

Exactly what it says on the tin. Could the Albigensian Crusade in 1209 to 1229 have collapsed, allowing for a much stronger Occitan culture and perhaps a cementing of Catharism? Possible PODs I see: Louis VIII dies before Amaury de Montfort gives him his claim to Languedoc, Philip II doesn't die in 1216 and thus remains the highly ineffective commander of the crusade, Aragonese-Toulousian forces defeat Simon de Montfort at the Battle of Muret (i.e. King Peter survives). All of these could lead to the collapse of the Crusade, I think. A side-question: if it collapsed, what would the repercussions be in Europe?

Thoughts?
 
What Philip II are you referring to? The king died in 1223, and was hardly a director of the crusade.

Also, in regards to collapse - why does any of these events not mean that people try again?

This isn't an area or era of expertise of mine, but that question comes to mind.
 
Well, I was given to understand by my source (which is a notebook from my college history course years and years ago) that Philip commanded the crusading army from the death of Simon de Montfort until his own death. Our professor was a drunk, though, so I could definitely be wrong.

It doesn't mean they won't try again, but it will certainly throw spanners in the crusade.
 
the might blame the templars and hospitaler knights because they didnt participate in the crusade

some sources even state that the templars helped the Cathars because of family relations
 
the might blame the templars and hospitaler knights because they didnt participate in the crusade

some sources even state that the templars helped the Cathars because of family relations

Why would they blame the Templars and Hospitalers - which are primarily focused on the Holy Land?

That seems random.
 
because they didnt support that crusade
but my books on the crusades could be wrong

Why would anyone care that they didn't support that crusade? They have pre-existing obligations and demands on their manpower and money.

It'd be like blaming Castile or Portugal, only more so.
 
Why would anyone care that they didn't support that crusade? They have pre-existing obligations and demands on their manpower and money.

It'd be like blaming Castile or Portugal, only more so.

Very true.

Any other thoughts? I'm thinking the Battle of Muret is the best POD. Not only would a victory for the Cathars be the defeat of the biggest contributor to the crusade, it would also mean continued Aragonese support for the Cathars, and therefore a much stronger opponent for the crusaders.
 
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