Petras Lukosius was born in 1956 in Lithuania. At the ago of fourteen, he began attending the Klaipeda Children Art School, followed by Telsiai Applied Arts Technical School. activities.
In 1979 Lukosius graduated from the Klaipeda Branch of the Vilnius Academy of Arts. He began participating in national and international shows when he was a teenager. He has held personal shows around the world in places such as Germany, England, Spain, and Sweden. He also exhibited in Chicago in 2004.