Zacharius (Sakari) Topelius 1818-1898 Finnish journalist, historian, writer. Wrote Finnish historical novels in Swedish. Collected myths of ancient Finland in the
Kalevala.
His name is most often spelled "Zacharias".
See:
http://kirjasto.sci.fi/topelius.htm
http://www.helsinki.fi/kasv/nokol/topelius.html