His father was a beverage merchant and owned an Inn in Mahalaua Staicului.

As a student of the Saint Sava High School, he won 1st prize in an Art contest.

[3] In 1869, Andreescu dropped out of high school and started attending Theodor Aman's "National School of Fine Arts" (now known as the Bucharest National University of Arts) where he studied Linear Drawing and Calligraphy.

Andreescu began attending the private arts school Académie Julian and at the same time he was accepted at Salon (Paris) where he exposed two paintings, "Start of Spring" and "The Fair in Romania".

Here he worked alongside artists such as Grigorescu, Alexandru Djuvara, Jean-Baptiste-Camille Corot, Jean-François Millet, and Claude Monet.