How long was the rule of the dynasty that was active when the Rosetta Stone was inscribed?
Ptolemaic dynasty The Ptolemaic dynasty (Ancient Greek: Πτολεμαῖοι , "Ptolemaioi"), sometimes also known as the Lagids or Lagidae (Ancient Greek: Λαγίδαι , "Lagidai", after Lagus, Ptolemy I's father), was a Macedonian Greek royal family, which ruled the Ptolemaic Kingdom in Egypt during the Hellenistic period. Their rule lasted for 275 years, from 305 to 30 BC. They were the last dynasty of ancient Egypt.
Karamanli dynasty The Karamanli, Caramanli, Qaramanli, or al-Qaramanli dynasty was an early modern dynasty, independent or quasi-independent, which ruled from 1711 to 1835 in Tripolitania, comprising Tripoli and its surroundings in present-day Libya. At its peak, the Karamanli dynasty's influence reached Cyrenaica and Fezzan, covering most of Libya. The founder of the dynasty was Pasha Ahmed Karamanli, a descendant of the Karamanids. The most well-known Karamanli was Yusuf ibn Ali Karamanli Pasha who reigned from 1795 to 1832, who fought a war with the United States in (1801–1805). Ali II Karamanli marked the end of the dynasty.