Please answer the following question: Information: - Seleucus III Soter , called Seleucus Ceraunus ( Greek : , ; ca . 243 BC -- 223 BC ) , was a ruler of the Hellenistic Seleucid Kingdom , the eldest son of Seleucus II Callinicus and Laodice II. His birth name was Alexander and was named after his great uncle the Seleucid official Alexander . Alexander changed his name to Seleucus after he succeeded his father as King . After a brief reign of three years ( 225 -- 223 BC ) , Seleucus was assassinated in Anatolia by members of his army while on campaign against Attalus I of Pergamon . His official byname Soter means '' Saviour '' , while his nickname Ceraunus means '' Thunderbolt '' . - Laodice (lived in the 3rd century BC), wife of her cousin Seleucus II Callinicus, was, according to the express statement of Polybius, the daughter of Andromachus and sister of Seleucid General Achaeus. Laodice II bore Seleucus II five children, among them were: Antiochis, Seleucus III Ceraunus and Antiochus III the Great. - The Dardanelles, also known in Classical Antiquity as the Hellespont ("Hellespontos", literally "Sea of Helle"), is a narrow, natural strait and internationally-significant waterway in northwestern Turkey that forms part of the continental boundary between Europe and Asia, and separates Asian Turkey from European Turkey. One of the world's narrowest straits used for international navigation, the Dardanelles connects the Sea of Marmara with the Aegean and Mediterranean Seas, while also allowing passage to the Black Sea by extension via the Bosphorus. - Anatolia (from Greek , ' "east" or "(sun)rise"; in modern ), in geography known as Asia Minor (from ' "small Asia"; in modern ), Asian Turkey, Anatolian peninsula, or Anatolian plateau, is the westernmost protrusion of Asia, which makes up the majority of modern-day Turkey. The region is bounded by the Black Sea to the north, the Mediterranean Sea to the south, and the Aegean Sea to the west. The Sea of Marmara forms a connection between the Black and Aegean Seas through the Bosphorus and Dardanelles straits and separates Anatolia from Thrace on the European mainland. What is the relationship between 'seleucus iii ceraunus' and 'antiochis'?
Answer:
sister