It looks as though Joan De Vere Joan de Vere has been erroneously added as wife of Warren a few times due to confusion with the fact that she was warried to William de Warenne Sir William de Warenne
While it seems that Warren of Warren was in fact father of Angharad Puleston Angharad Puleston the mother appears unknown.
On this basis I am removing what appears to be a duplicate profile of Joan De Vere Countess de Warenne Joan Warren as wife of Warren and mother of Angharad and merging that into the Joan De Vere profile previously mentioned.
If anyone knows the true wife of Warren and mother of Angharad then please jump in and add the relevant profiles.