Title: Leonidas II
Content:  He was the father of three children by his wife Cratesiclea, who belonged to the Seleucid dynasty founded by Seleucus Nicator. His son Cleomenes III eventually succeeded him, having been married at age 18 to Agiatis (d. 224 BC), widow of Agis IV, the Eurypontid king; they had at least one son together who died in Egypt with his grandmother. His daughter Chilonis was married to Cleombrotus II who replaced his father-in-law as king for some time. She was notable for her fidelity to her father, whom she followed into exile, and then to her husband whom she also followed into exile after her father returned to power.
Title: Leonidas I
Content:  Leonidas I (Doric Λεωνίδας Α´, Leōnídas A; Ionic and Attic Greek: Λεωνίδης Α´, Leōnídēs A ; "son of the lion"; died 19 September 480 BC) was a king of the Greek city-state of Sparta, and the 17th of the Agiad line, a dynasty which claimed descent from the mythological demigod Heracles and Cadmus. Leonidas I was son of King Anaxandridas II. He succeeded his half-brother King Cleomenes I to the throne in c. 489 BC. His co-ruler was King Leotychidas. He was succeeded by his son, King Pleistarchus. Leonidas had a notable participation in the Second Persian War, where he led the allied Greek forces to a last stand at the Battle of Thermopylae (480 BC) while attempting to defend the pass from the invading Persian army; he died at the battle and entered myth as the leader of the 300 Spartans. While the Greeks lost this battle, they were able to expel the Persian invaders in the following year.
Title: Leon of Sparta
Content:  Leon was the son of king Eurycratides and grandson of Anaxander. He was succeeded on the throne by his son Anaxandridas II, who managed to defeat Tegea.
Title: Leonidas II
Content:  Leonidas II was raised at the Seleucid court, and according to Plutarch's Life of Agis IV, he married a Persian woman. According to other sources, this non-Spartan wife was actually a Seleucid, possibly the daughter of Seleucus I Nicator by his Persian wife Apama. She was therefore not fully Persian, but half-Macedonian and half-Persian. His Persian-influenced lifestyle, his non-Spartan (therefore foreign) wife and his half-Spartan children would all be made issues by the ephor Lysander, the co-king Agis IV and their supporters. Leonidas II opposed the attempted reforms of his Eurypontid co-king, Agis IV. The ephor, Lysander, claimed to have seen a sign from the gods against Leonidas, and Leonidas fled to avoid his trial. In his absence, Leonidas was deposed from the throne and replaced by his son-in-law, Cleombrotus II. He later returned to Sparta while Agis was on campaign in Aetolia and deposed and exiled Cleombrotus II, and reclaimed his throne. Soon after, he deposed and executed Agis IV alongside his mother Agesistrate and grandmother Archidamia.
Title: Leonidas I
Content:  son, Dorieus. Leonidas was the second son of Anaxandridas' first wife, and either the elder brother or twin of Cleombrotus. King Anaxandridas II died in 520 BC, and Cleomenes succeeded to the throne sometime between then and 516 BC. Dorieus was so outraged that the Spartans had preferred his half-brother over himself that he found it impossible to remain in Sparta. He made one unsuccessful attempt to set up a colony in Africa and, when this failed, sought his fortune in Sicily, where after initial successes he was killed. Leonidas' relationship with his bitterly antagonistic elder brothers is unknown, but he married Cleomenes' daughter, Gorgo, sometime before coming 
Title: Leonidas I
Content:  to us,' Leonidas son of Anaxandridas and brother of Cleomenes replied: 'But were I not better than you, I should not be king.'" As the product of the agoge, Leonidas is unlikely to have been referring to his royal blood alone but rather suggesting that he had, like his brother Dorieus, proven superior capability in the competitive environment of Spartan training and society, and that he believed this made him qualified to rule. Leonidas was chosen to lead the combined Greek forces determined to resist the Second Persian invasion of Greece in 481 BC. This was not simply a tribute to Sparta's military prowess: The probability that 
Title: Leonidas I
Content:  the throne in 490 BC. Leonidas was heir to the Agiad throne and a full citizen (homoios) at the time of the Battle of Sepeia against Argos (c. 494 BC). Likewise, he was a full citizen when the Persians sought submission from Sparta and met with vehement rejection in or around 492/491 BC. His elder half-brother, king Cleomenes, had already been deposed on grounds of purported insanity, and had fled into exile when Athens sought assistance against the First Persian invasion of Greece, that ended at Marathon (490 BC). Plutarch has recorded the following: "When someone said to him: 'Except for being king you are not at all 
Title: Leonidas II
Content:  Leonidas II (, Leōnídas B', "Lion's son, Lion-like"), was the 28th Agiad King of Sparta from 254 to 242 BC and from 241 to 235 BC
Title: Leonidas I
Content:  According to Herodotus, Leonidas' mother was not only his father's wife but also his father's niece and had been barren for so long that the ephors, the five annually elected administrators of the Spartan constitution, tried to prevail upon King Anaxandridas II to set her aside and take another wife. Anaxandridas refused, claiming his wife was blameless, whereupon the ephors agreed to allow him to take a second wife without setting aside his first. This second wife, a descendant of Chilon of Sparta (one of the Seven Sages of Greece), promptly bore a son, Cleomenes. However, one year after Cleomenes' birth, Anaxandridas' first wife also gave birth to 
Title: Leonnatus
Content:  Leonnatus (Λεοννάτος; 356 BC – 322 BC) was a Macedonian officer of Alexander the Great and one of the diadochi. He was a member of the royal house of Lyncestis, a small Greek kingdom that had been included in Macedonia by King Philip II of Macedon. Leonnatus was the same age as Alexander and was very close to him. Later, he was one of Alexander's seven bodyguards, or somatophylakes. After Alexander died in 323 BC, the regent, Perdiccas, made Leonnatus satrap of Hellespontine Phrygia. Diodorus (Book XVII.37-38) tells us that during the Battle of Issus, the immediate family of Darius had been captured by the Macedonian Army. Darius' family was hysterical that they would suffer a dreadful fate. However, Leonnatus was able to explain to them, on 

Question: who was the son of king leonidas?
Answer: Pleistarchus.