Notable events included the maiming of Lord Orys Baratheon, the death of Queen Rhaenys and Meraxes at Hellholt in 10 AC, and the formation of the Kingsguard following a failed assassination attempt on King Aegon I. In 4 AC, Aegon the Conqueror launched a second attempt to conquer Dorne, the devastating First Dornish War. House Targaryen conquered the other six kingdoms of Westeros during Aegon's Conquest. Eventually, Rhaenys flew to Sunspear on her dragon, Meraxes, where Princess Meria told her to leave, as she was not wanted in Dorne. Rhaenys captured holdfasts, but it made no difference, for there was no man to be found, only women and children. However, the Dornish refused to give battle, and instead hid, melting away in their mountains and deserts. His sister-wife, Queen Rhaenys Targaryen, led an army into Dorne during the first war. Aegon, looking not for alliances but for submission, did not accept, and began his Wars of Conquest. Shortly before Aegon's Conquest, Princess Meria Martell, the ruling Princess of Dorne, offered an alliance to Aegon Targaryen against the Storm Kings. Although Daeron quickly conquered Dorne, the Dornishmen successfully rebelled. Daeron the Young Dragon was only fourteen years old when he began his war in 157 AC. Upon ascending to the throne, King Daeron I Targaryen wanted to complete the campaign begun by his ancestor, Aegon the Conqueror. The conquest of Dorne was a war in Westeros, fought between the Iron Throne and Dorne.

Short-lasting conquest of Dorne, followed by a Dornish rebellion Conquest of Dorneīaelor I does a walk of penance through the Boneway, as depicted by Arthur Bozonnet in The World of Ice & Fire

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