Background
Otto was the eldest son of Landgrave Maurice of Hesse-Kassel (1572-1632) from his marriage to Agnes (1578-1602), the daughter of Count John George of Solms-Laubach. Otto was educated by his father, together with his siblings.
Otto was the eldest son of Landgrave Maurice of Hesse-Kassel (1572-1632) from his marriage to Agnes (1578-1602), the daughter of Count John George of Solms-Laubach. Otto was educated by his father, together with his siblings.
When he was 10 years, he was enlisted in Hersfeld Abbey. He became administrator of the Abbey in 1606, and Joachim Röll, the abbot, intended him to become coadjutor and his successor as abbot. After completing his studies at the University of Marburg, Otto made a Grand Tour, visiting London and Paris.
When he returned, his father involved him in the business of government.
In 1617, he suffered from the German measles. He had a fever and from his sickbed, he tried to shoot a barking dog, which annoyed him.
He missed so badly that he hit himself in the chest and died. He was buried in the Lutheran Saint Mary"s church in Marburg.