Question: How long was the rule of the dynasty that was active when the Rosetta Stone was inscribed?

full_context: Document 1: Great Mendes Stela: The Great Mendes Stela is a commemorative stele erected during the Ptolemaic dynasty by Ptolemy II Philadelphus for Mendes, Lower Egypt. Ptolemies III through V also had stelae: the bilingual, three-script Decree of Canopus and the Rosetta Stone.
Document 2: Philip II of Macedon: Philip II of Macedon (Greek: Φίλιππος Β΄ ὁ Μακεδών , "Phílippos II ho Makedṓn"; 382–336 BC) was the king (Basileus) of the Ancient Greek kingdom of Macedon from 359 BC until his assassination in 336 BC . He was a member of the Argead dynasty of Macedonian kings, the third son of King Amyntas III of Macedon, and father of Alexander the Great and Philip III. The rise of Macedon during the reign of Philip II was achieved in part by his reformation of the Ancient Macedonian army, establishing the Macedonian phalanx that proved critical in securing victories on the battlefield. After defeating Athens and Thebes at the Battle of Chaeronea in 338 BC, Philip II led the effort to establish a federation of Greek states known as the League of Corinth, with him as the elected hegemon and commander-in-chief of a planned invasion of the Achaemenid Empire of Persia. However, his assassination led to the immediate succession of his son Alexander, who would go on to invade the Achaemenid Empire in his father's stead.
Document 3: Macedonia (ancient kingdom): Macedonia or Macedon ( , ] , Greek: Μακεδονία , "Makedonía ") was an ancient kingdom on the periphery of Archaic and Classical Greece, and later the dominant state of Hellenistic Greece. The kingdom was founded and initially ruled by the royal Argead dynasty, which was followed by the Antipatrid and Antigonid dynasties. Home to the ancient Macedonians, the earliest kingdom was centered on the northeastern part of the Greek peninsula, and bordered by Epirus to the west, Paeonia to the north, Thrace to the east and Thessaly to the south.
Document 4: Greek royal family: The Greek royal family (Greek: Ελληνική Βασιλική Οικογένεια) is a branch of the House of Glücksburg that reigned in Greece from 1863 to 1924 and again from 1935 to 1973. Its first monarch was George I, the second son of King Christian IX of Denmark. He and his successors styled themselves "Kings of the Hellenes". Most members of the dynasty (aside from the last king to reign, Constantine II and his queen consort, Anne-Marie of Denmark) hold the title "Prince or Princess of Greece and Denmark" with the style "Royal Highness", except Marina, Consort of Prince Michael, and their daughters Princess Alexandra and Princess Olga.
Document 5: Hieroglyph: A hieroglyph (Greek for "sacred writing") is a character of the ancient Egyptian writing system. Logographic scripts that are pictographic in form in a way reminiscent of ancient Egyptian are also sometimes called "hieroglyphs". In Neoplatonism, especially during the Renaissance, a "hieroglyph" was an artistic representation of an esoteric idea, which Neoplatonists believed actual Egyptian hieroglyphs to be. The word "hieroglyphics" refer to a hieroglyphic script. Unlike English, the hieroglyphic script was spelt exactly as it was sounded out. Only those privileged with an extensive education (i.e. the Pharaoh, nobility and priests) were able to read and write hieroglyphs; others used simpler 'joined-up' versions: demotic and hieratic script.
Document 6: Ergamenes: Ergamenes is the hellenized name of a Nubian king of Meroë reported by Agatharchides in Diodorus Siculus (3.2.6, FHN II No. 142). According to this account, Ergamenes reigned in Meroë during the friendly Egyptian reign of Ptolemy II Philadelphus to Ptolemy IV Philopator, was instructed in Greek philosophy, favored Greek art and its way of life, although it could be rather intended as a cultural influence from a Ptolemaic-governed Egypt. He resented the tradition of ancient Egypt and the Ethiopian priests' control over the King's power and preferred the absolute power of his neighbor, Ptolemy II:
Document 7: Rosetta Stone: The Rosetta Stone is a granodiorite stele, found in 1799, inscribed with three versions of a decree issued at Memphis, Egypt in 196 BC during the Ptolemaic dynasty on behalf of King Ptolemy V. The top and middle texts are in Ancient Egyptian using hieroglyphic script and Demotic script, respectively, while the bottom is in Ancient Greek. As the decree has only minor differences between the three versions, the Rosetta Stone proved to be the key to deciphering Egyptian hieroglyphs.
Document 8: Jean-François Champollion: Jean-François Champollion (Champollion "le jeune"; 23 December 17904 March 1832) was a French scholar, philologist and orientalist, known primarily as the decipherer of Egyptian hieroglyphs and a founding figure in the field of Egyptology. A child prodigy in philology, he gave his first public paper on the decipherment of Demotic in 1806, and already as a young man held many posts of honor in scientific circles, and spoke Coptic and Arabic fluently. During the early 19th-century French culture experienced a period of 'Egyptomania', brought on by Napoleon's discoveries in Egypt during his campaign there (1797–1801) which also brought to light the trilingual Rosetta Stone. Scholars debated the age of Egyptian civilization and the function and nature of hieroglyphic script, which language if any it recorded, and the degree to which the signs were phonetic (representing speech sounds) or ideographic (recording semantic concepts directly). Many thought that the script was only used for sacred and ritual functions, and that as such it was unlikely to be decipherable since it was tied to esoteric and philosophical ideas, and did not record historical information. The significance of Champollion's decipherment was that he showed these assumptions to be wrong, and made it possible to begin to retrieve many kinds of information recorded by the ancient Egyptians.
Document 9: Rosetta Stone decree: The Decree of Memphis (Ptolemy V) is the third Memphis decree, the first being for his grandfather Ptolemy III (Decree of Canopus), and the second being, Decree of Memphis (Ptolemy IV). The Decree for Ptolemy V is the text recorded on the Rosetta Stone (issued at Memphis in 196 BC) in the Egyptian hieroglyphs, Demotic (Egyptian) script, and Greek.
Document 10: Alexander Helios: Alexander Helios (Greek: Ἀλέξανδρος Ἥλιος ; late 40 BC – unknown, but possibly between 29 and 25 BC) was a Ptolemaic prince and was the eldest son of the Macedonian queen Cleopatra VII of Ptolemaic Egypt by Roman triumvir Mark Antony. Alexander's fraternal twin sister was Cleopatra Selene II. The twins were of Macedonian Greek and Roman heritage, Cleopatra named her son after her collateral ancestor, Alexander the Great. His second name in Ancient Greek means "Sun"; this was the counterpart of his twin sister’s second name "Selene" (Σελήνη), meaning "Moon".
Document 11: Rosetta (software): Rosetta was a dynamic binary translator for Mac OS X that allowed many PowerPC applications to run on certain Intel-based Macintosh computers without modification. Apple released Rosetta in 2006 when it changed the instruction set architecture of the Macintosh platform from the PowerPC to the Intel processor. The name "Rosetta" is a reference to the Rosetta Stone, the discovery that made it possible to comprehend and translate Egyptian hieroglyphs.
Document 12: Decree of Canopus: The Decree of Canopus is a trilingual inscription in three scripts, which dates from the Ptolemaic period of Ancient Egypt. It was written in three writing systems: Egyptian hieroglyphs, demotic, and Greek, on several ancient Egyptian memorial stones, or steles. The inscription is a record of a great assembly of priests held at Canopus, Egypt, in 238 BCE. Their decree honoured Pharaoh Ptolemy III Euergetes; Queen Berenice, his wife; and Princess Berenice.
Document 13: Ptolemy XIV of Egypt: Ptolemy XIV (Greek: Πτολεμαῖος , "Ptolemaĩos", who lived 60 BC/59 BC–44 BC and reigned 47 BC–44 BC), was a son of Ptolemy XII of Egypt and one of the last members of the Ptolemaic dynasty of Egypt. Following the death of his older brother Ptolemy XIII of Egypt on January 13, 47 BC, he was proclaimed Pharaoh and co-ruler by their older sister and remaining Pharaoh, Cleopatra VII of Egypt. He and Cleopatra were married, but Cleopatra continued to act as lover of Roman dictator Julius Caesar. Ptolemy is considered to have reigned in name only, with Cleopatra keeping actual authority to herself. On March 15, 44 BC Caesar was murdered in Rome by a group of conspirators whose most notable members were Marcus Junius Brutus and Gaius Cassius Longinus. Ptolemy soon followed him in death. An inscription mentioning him as alive was dated at July 26, 44 BC. It has been assumed but remains uncertain that Cleopatra poisoned her co-ruler, with aconite, to replace him with his nephew Ptolemy XV Caesarion, her son by Caesar who was proclaimed co-ruler on September 2, 44 BC and whom his mother intended to support as successor of his father.
Document 14: 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.
Document 15: History of Egypt: The history of Egypt has been long and rich, due to the flow of the Nile river, with its fertile banks and delta. Its rich history also comes from its native inhabitants and outside influence. Much of Egypt's ancient history was a mystery until the secrets of ancient Egyptian hieroglyphs were deciphered with the discovery and help of the Rosetta Stone. The Great Pyramid of Giza is the only one of the Seven Wonders of the Ancient World still standing. The Lighthouse of Alexandria, one of the other Seven Wonders, is gone. The Library of Alexandria was the only one of its kind for centuries.
ground_truth: 275 years