The 48-year-old surnamed Baek was sentenced to 54 months in prison by Daegu District Court for arson at the old home of Park Chung-Hee in the southern town of Gumi last December.
Baek told investigators he was angry that President Park Geun-Hye did not resign or "kill herself" following the emergence of a corruption scandal that finally saw her removed from office last month.
She is now in custody and on trial for bribery.
Park Chung-Hee is credited with pulling the war-ravaged South out of poverty during his iron-fisted rule from 1961- 1979, when he was assassinated by his security chief.
However, he is also reviled for his regime's human rights abuses.
Baek previously received a suspended prison term for setting fire to the birthplace of President Roh Tae-woo, a former general, in 2012.
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