That work was designed with figures on the bottom story representing the Liberal Arts and was going to consist of eight sculptures of Victories and sixteen sculptures of captives, but only The Dying Slave and The Rebellious Slave were finished.
One sculpture by this man contains the words "Heaven, Earth, Heaven, Earth" engraved on it. That work depicts a woman with an owl beneath her knee and a moon on her diadem. The sculpture of that woman, who mourns to the heavens, is called Night, which along with his sculpture Day, is part of a group that shows its commissioner sitting above them in Roman armor looking to the left. Ascanio Condivi memorialized one of his works ina Tragedy for which he probably created (*) Rachel and Leah. That work was designed with figures on the bottom story representing the Liberal Arts and was going to consist of eight sculptures of Victories and sixteen sculptures of captives, but only The Dying Slave and The Rebellious Slave were finished. For ten points, identify this sculptor of the tomb of Giuliano Medici, who never the Papal Tomb of Julius II.
One sculpture by this man contains the words "Heaven, Earth, Heaven, Earth" engraved on it.
Michelangelo di Lodovico Buonarroti Simoni (accept either underlined answer)