Spermatogenesis is the process of forming sperm cells by meiosis (in animals, by mitosis in plants) in specialized organs known as gonads (in males these are termed testes). After division the cells undergo differentiation to become sperm cells.
The Dracula of fiction lived in a place that was based on Bran Castle in Transylvania. Bram Stoker never visited Romania. He depicted the imaginary Dracula's castle based upon a description of Bran Castle that was available to him in turn-of-the-century Britain.
The castle depicted in the novel Dracula matches some parts of Bran Castle-but it's far from being an exact match. The character of Dracula was, however, based on a real individual-Vlad the Impaler. Vlad's cruelty and bloodlust was truly inhuman-stranger than fiction.