There is very little concrete record for his life after returning to Europe and much of what we do know is speculation or legend.
However, Albert of Aix records that he died in 1131, as prior of a church of the Holy Sepulchre which he had founded in France or Flanders.
 It is thought that during the Siege of Antioch during the days of famine and cold weather, Peter attempted to flee only to be captured by the Norman Tancred and placed back on the battlefield in 1112.
Peter also held services of intercession for Latin and native recruits.
Peter advised Greeks and Latins to form processions as well.

It is generally quoted that he founded an Augustinian monastery in France named for the Church of the Holy Sepulchre.
However, it was actually in Flanders at Neufmoustier near Huy, or Huy itself which may have been his home town.
His tomb is in the Neufmoustier Abbey, so it is presumed that this was his Abbey but in another tradition the nearby Solières Abbey claims that it was his foundation.

Peter's obituary is in the chronicle of  Abbey Neufmoustier Huy.
On its page entry of 8 July 1115 the chronicle says that this day saw "the death of Dom Pierre, of pious memory, venerable priest and hermit, who deserved to be appointed by the Lord to announce the first to the holy Cross" and the text continues with "after the conquest of the holy land, Pierre returned to his native country" and also that "he founded this church ... and chooses them a decent burial".
This record further supports Neufmoustier's claim as his foundation.
There is very little concrete record for his life after returning to Europe and much of what we do know is speculation or legend. However, Albert of Aix records that he died in 1131, as prior of a church of the Holy Sepulchre which he had founded in France or Flanders.  It is thought that during the Siege of Antioch during the days of famine and cold weather, Peter attempted to flee only to be captured by the Norman Tancred and placed back on the battlefield in 1112. Peter also held services of intercession for Latin and native recruits. Peter advised Greeks and Latins to form processions as well.
It is generally quoted that he founded an Augustinian monastery in France named for the Church of the Holy Sepulchre. However, it was actually in Flanders at Neufmoustier near Huy, or Huy itself which may have been his home town. His tomb is in the Neufmoustier Abbey, so it is presumed that this was his Abbey but in another tradition the nearby Solières Abbey claims that it was his foundation.
Peter's obituary is in the chronicle of  Abbey Neufmoustier Huy. On its page entry of 8 July 1115 the chronicle says that this day saw "the death of Dom Pierre, of pious memory, venerable priest and hermit, who deserved to be appointed by the Lord to announce the first to the holy Cross" and the text continues with "after the conquest of the holy land, Pierre returned to his native country" and also that "he founded this church ... and chooses them a decent burial". This record further supports Neufmoustier's claim as his foundation.
Peter the Hermit