Petrus Petri Torpensis Sudermannus (1611–1679) was a Swedish prelate, vicar in the Diocese of Västerås, writer, and poet. He was attached to the Royal Academy of Åbo (Turku).
He married Bellina, daughter of Stephanus Olai Bellinus, and granddaughter of Olaus Canuti Helsingius.
Bibliography De prima et cardinali virtute Justitia. Ab. 1643 De adjunctorum propriorum communicatione. Ib. 1646 Pentas I. Quæstionum nobiliorum Philosophicarum. Ib. 1648 Pentas II. Quæstion. selectiorum Philosophicarum, e. a. Pentas III. Quæst. præstantiorum Philos. Ib. e. a. Pentas I, II, III et IV. Quæstionum selectior. philos. Aros. 1659, 1660 ("4 Gymnasiidisputationer") Historia universalis
References Professorer och studenter. Berättelse från Åbo på 1660-talet (1888) av Rafael Hertzberg: https://gupea.ub.gu.se/bitstream/2077/53417/1/gupea_2077_53417_1.pdf Westerås Stifts Herdaminne av Johan Fredrik Muncktell, första delen: https://www.zenker.se/Historia/Herdaminne/odensvi.shtml#kh10 Bidrag till Kännedom af Finlands Natur och Folk, utgifna af Finska Vetenskaps-Societeten, Femte Häftet: https://runeberg.org/bkfnf/5/0091.html Latin Dissertations and Disputations in the Early Modern Swedish Gymnasium – A Study of a Latin School Tradition c. 1620 – c. 1820, Axel Hörstedt: https://gupea.ub.gu.se/bitstream/2077/55897/1/gupea_2077_55897_1.pdf Östgötars minne; biografiska anteckningar om studerande Östgötar i Uppsala 1595–1900: https://archive.org/stream/stgtarsminnebio00odgoog/stgtarsminnebio00odgoog_djvu.txt