Piotr Grudziński
| a.k.a. | Grudzień |
|---|---|
| Country | Poland |
| Born | March 15, 1975, Warszawa, mazowieckie, Poland |
| Died | February 21, 2016 (aged 40) |
| Member of | Unnamed (1993-2003) Groan (1998) Riverside (2001-2016) |
| Occupations | Musician, Guitarist |
| Instruments | Guitars |
| Genres | Progressive Metal |
| Years active | 1993-2016 |
