the name of one or more Russian architects of the mid-16th century.
Postnik Iakovlev (dates of birth and death unknown) was a church and city planner in Pskov. He collaborated with I. Shiriai on the Kremlin’s southern walls and row of towers (1556–62), including the Spasskaia Tower, and on the Blagoveshchenskii Cathedral in Kazan (1562). The construction of Uspenskii Cathedral (1560) at Uspenskii Monastery in Sviiazhsk is also attributed to Postnik Iakovlev.
The builder who collaborated with Barma on Moscow’s Cathedral of Basil the Blessed, or Pokrovskii Cathedral on the Moat (1555–60), was also known as Postnik.
It has been conjectured that the two Postniks may be one and the same person and that the same may be true of Postnik and Barma.