The Evert family was of German aristocratic origin, and they were philhellenes (i.e. lovers of Greek culture) who permanently settled in Greece in the late 19th century and eventually took Greek citizenship.
After his father's death he succeeded him as master of his estates at Ehrenfels, but in early 1822, along with other philhellenes, he sailed to Greece to assist the Greek rebels in their uprising against the Ottoman Empire.