Rallis Kopsidis was born in 1929, within an immigrant family in Limnos Castle where he lived his childhood. Α major persona of Modern Greek painting, revolutionary saintly painter and engraver.

He started his career by studying at the Pedagogic Academy and then continued at the School of Fine Arts. For six beneficial years he was apprenticed to Fotis Kontoglou and collaborated with him on Church painting.

His saintly painting work is an innovative attempt to combine traditional artistic forms with a modern style in the painting of Orthodox churches. One of his masterpieces is the revolutionary saintly painting in the Patriarchal Center at Chambesy Switzerland.

His secular painting work, is characterized by a personal style of magical realism.

Apart from his sole artistic work, the Lemnian artist has written and illustrated several literary books.