- Donatein was quite young to have been uprooted so many times. He was 10 years old when he was enrolled at the prep school. Although the Jesuits had a remarkable reputation as educators, they were infamous for their practices involving sodomy and corporal punishment. The Jesuits would beat, whip, or flog the young boys in front of an assembled student body to humiliate them. The humility of the beatings, oddly enough, could also be sexually arousing. This practice came to be known as sado-masochistic behavior. As an adult, the Marquis de Sade was unable to be aroused by normal sex, so it appeared that his sexuality was arrested at the infantile anal stage.
- After 4 years with the Jesuits, Donatein was transferred to a military academy upon this father's request. In 1755, shortly following his arrival, Donatein served in the King's light cavalry regiment as a sub leutenant. He was only 15 years old at the time. The young Marquis served in the war and was considered a brave and decisive leader. Unsatisfied with Donatein's success in the cavalry, his father had him placed with a cavalry company commanded by one of the members of the royal family. Donatein's bravery, good looks, and social charm made him a very successful soldier. His superiors were quite impressed by the Marquis; therefore, he was promoted to captain at the young age of 18. Donatein seemed able to impress everyone but his own father. His father never praised his son for his many accomplishments, yet had no difficulty pointing out his shortcomings.
- When the Marquis de Sade returned from the war in 1763, he had his sights set on a particular lady whom he wished to marry. However, his father was opposed to the union. Instead, he arranged for the Marquis to marry her elder sister, Renee-Pelagie de Montrieul. The couple had 3 children, 2 boys and a girl.
- The same year the couple was married, the Marquis de Sade frequently traveled away from home for "business" reasons. While away on his travels, he rented several different maisons around
where orgies were held. One particularly disturbing encounter took place between the Marquis and a young prostitute. After he was alone with her, he quizzed the young prostitute about her religious convictions regarding the Roman Catholic Church. When he discovered that she was a faithful Roman Catholic, he began degrading her with inconceivable vile insults. Paris
To the young woman's horror, he proceeded to perform sexually explicit acts on her with the aid of religious objects that were extremely blasphemous and sacrilegious in nature. When the young prostitute refused his request to beat each other with a hot whip, he pleasured himself sexually with a pair of crucifixes. Then he held her at knife point, forcing her to repeat vulgarities in the most blasphemous manner. This resulted in the Marquis de Sade's first imprisonment; however, his lewd and debaucherous behavior would result in numerous other imprisonments during his lifetime. He died in 1814 and was buried in Charenton. Later his skull was removed from the grave for phrenological examination.