A forestry expert of Bohemian origin, he was born in Prague on August 24, 1805. Appointed Inspector and Administrator of the Royal Casentine Forests by Grand Duke Leopold II, he moved to Pratovecchio at the end of 1838, and italianized his name as Carlo Siemoni. Up to 1876, the year in which he turned the administration of the forests over to his son Odoardo, he carried out a colossal work of territorial reorganisation, improving the roadways in the forests, reforesting extensive areas that had been abandoned to degradation with over 50,000,000 spruce trees, and experimenting with the acclimatizing of exotic forest species. He died in the Villa of Pratovecchio at the age of 73.