Little is known of Marx's childhood. The third of nine children, he became the eldest son when his brother Moritz died in 1819. Marx and his surviving siblings, Sophie, Hermann, Henriette, Louise, Emilie, and Caroline, were baptised into the Lutheran Church in August 1824, and their mother in November 1825. Marx was privately educated by his father until 1830 when he entered Trier High School (), whose headmaster, Hugo Wyttenbach, was a friend of his father. By employing many liberal humanists as teachers, Wyttenbach incurred the anger of the local conservative government. Subsequently, police raided the school in 1832 and discovered that literature espousing political liberalism was being distributed among the students. Considering the distribution of such material a seditious act, the authorities instituted reforms and replaced several staff during Marx's attendance.