 Mikalojus Radvila the Old

Mikalojus Radvila or Mikolaj I nicknamed "the Old" (, , ) (c. 1450 – 16 July 1509) was a Lithuanian noble.He was known after a patronym "Radvilaitis", made of his father's name Radvila, which in turn became a family name of his heirs, Radvilos, which later polonised as Radziwiłł.