Family tree M. Tolsma » Sources »
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0   - The Church of Jesus Christ of Latter-day Saints - accessed 27 Jun 2016), entry for Pierre II de Courtenay, person ID KF2Y-7SF.
- FamilySea
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0   - The Church of Jesus Christ of Latter-day Saints - accessed 27 Jun 2016), entry for Pierre II de Courtenay, person ID KF2Y-7SF.
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0   - The Church of Jesus Christ of Latter-day Saints - accessed 27 Jun 2016), entry for Clemence De Courtenay, person ID LCVF-CQK.
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0   - The Church of Jesus Christ of Latter-day Saints - accessed 27 Jun 2016), entry for Pierre III De Courtenay Emperor of Constantinople, person ID 9H8D-1WX.

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- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0   - The Church of Jesus Christ of Latter-day Saints - accessed 27 Jun 2016), entry for Pierre II de Courtenay, person ID KF2Y-7SF.
- FamilySea
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0   - The Church of Jesus Christ of Latter-day Saints - accessed 27 Jun 2016), entry for Pierre II de Courtenay, person ID KF2Y-7SF.
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0   - The Church of Jesus Christ of Latter-day Saints - accessed 27 Jun 2016), entry for Clemence De Courtenay, person ID LCVF-CQK.
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0   - The Church of Jesus Christ of Latter-day Saints - accessed 27 Jun 2016), entry for Pierre III De Courtenay Emperor of Constantinople, person ID 9H8D-1WX.


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