Complex sentence: The count disembarked in Rio de Janeiro on September 2,1864 in the company of his cousin, Ludwig August, the duke of Saxe and went directly to the Palace of São Cristóvão to meet the Brazilian imperial family.
Split into simpler sentences: The count disembarked in Rio de Janeiro on September 2,1864 in the company of the cousin, Ludwig August, the duke of Saxe. Immediately afterwards they went directly to the Palace of São Cristóvão to meet the Brazilian imperial family.