Complex sentence: The tenth of twelve children, he spent his young childhood in his native Hrotovice and 1845 went to Znojmofor secondary school in 1849 moved to a higher secondary school in Prague.
Split into simpler sentences: The tenth of twelve children, he spent his young childhood in his native Hrotovice and 1845 went to Znojmo for secondary school. In 1849 he moved to a higher secondary school in Prague.