"Procopius of Ustyug (Russian: Прокопий Устюжский or Святой Прокопий Любекский, German: Prokopius von Ustjug und Lübeck; 1243? — (1303-07-08)July 8, 1303 in Veliky Ustyug) was a ...
fool for Christ (yurodivy), a miracle worker, saint of Russian Orthodox Church, formerly a merchant from Lübeck. He was born in Germany, a Roman Catholic merchant who converted to Eastern Orthodox Christianity during his travels.
Though he is sometimes identified as one Jacob Potharst, son of a Lübeck merchant, Procopius' worldly name, surname, date and place of birth are not reliably determined. In 1818 the universal celebration of the saint was established." - (en.wikipedia.org 31.12.2020)