Saint Paisius Velichkovsky – Saint Paisius Velichkovsky or Wieliczkowski (Paisie de la Neamţ in Romanian; Паисий Величковский in Russian; Паїсій Величковський in Ukrainian; 20 December 1722 – 15 November 1794) was an Eastern Orthodox monk and theologian who helped spread staretsdom or the concept of the spiritual elder to the Slavic world.[2] He is a pivotal figure in Orthodox Church history.

Paisius Velichkovsky – Wikipedia

https://en.wikipedia.org/wiki/Paisius_Velichkovsky

Saint Paisius Velichkovsky or Wieliczkowski (Paisie de la Neamţ in Romanian; Паисий Величковский in Russian; Паїсій Величковський in Ukrainian; 20 December 1722 – 15 November 1794) was an Eastern Orthodox monk and theologian who helped spread staretsdom or the concept of the spiritual elder to the Slavic world.[2] He is a pivotal figure in Orthodox Church history.[3]