paragraph_text: Gregor Henckel-Donnersmarck OCist (Wrocław, 16. siječnja 1943.) austrijski je redovnik-cistercit, svećenik i teolog njemačkog podrijetla. Od 1999. do 2011. bio je opat cistercitske opatije Heiligenkreuz, a od 2003. do 2007. i vrhovni poglavar (njem. Abtpräses) Austrijske kongregacije cistercita. ORDEN online – Österreichische Zisterzienserkongregation. Pristupljeno 16.&nbsp;siječnja 2023. [https://web.archive.org/web/20230116190031/https://www.stift-heiligenkreuz.org/personlichkeiten/altabt-gregor/ Stift Heiligenkreuz – Abt em. Gregor Henckel-Donnersmarck]. Pristupljeno i arhivirano 16.&nbsp;siječnja 2023. [https://web.archive.org/web/20230117185851/https://www.rpp-institut.com/referenten/gregor-henckel-donnersmarck/ RPP Institut – Altabt P. Dipl.-Kfm. Mag. theol. Gregor Henckel-Donnersmarck]. Pristupljeno i arhivirano 17.&nbsp;siječnja 2023. [https://web.archive.org/web/20230117130804/http://www.kartellverband.org/biographien/dkfm-mag-theol-p-gregor-ulrich-henckel-donnersmarck-ocist-altabt-von-stift-heiligenkreuz-ehrenphilister-av-suevia-graz/ Kartellverband.org – Dkfm. Mag. theol. P. Gregor Ulrich Henckel-Donnersmarck OCist, Altabt von Stift Heiligenkreuz, Ehrenphilister AV Suevia Graz]. Pristupljeno i arhivirano 17.&nbsp;siječnja 2023.