Daenerys is the only daughter and youngest child of King Aerys II Targaryen, the Mad King. Her father died during the Sack of King's Landing before she was even born. Her mother fled to the island of Dragonstone to escape the usurper Robert Baratheon who installed himself as king. On the night Daenerys was born on Dragonstone a vast storm raged. For this reason she is sometimes called Daenerys Stormborn. Her mother died soon after she was born. As a baby, she was taken into exile in the Free Cities with her brother, Viserys, by loyal retainers.
After years spent fruitlessly trying to raise support to retake the Iron Throne, Viserys and Daenerys were given sanctuary by Magister Illyrio Mopatis in the Free City of Pentos. She dreams of finding a peaceful home and a place to belong. She lives in fear of her brother's temper and is meek and malleable.
Viserys arranges for Daenerys to marry Khal Drogo of the Dothraki. Daenerys enjoys a bath that her servant warns her is too hot; this may be related to her Targaryen heritage. Viserys trades Daenerys for the use of Drogo's khalasar in his planned invasion of Westeros. At the wedding she accepts a variety of gifts. She receives three dragon eggs from Magister Illyrio, who tells her that they have been turned to stone by the passage of time. Ser Jorah Mormont, a knight of Westeros, brings books about the Seven Kingdoms and offers Viserys his service. She is given a beautiful white horse by Drogo. On their wedding night, Daenerys is resistant but Drogo continues regardless.
Drogo's khalasar marches east for several months. Daenerys seeks advice from her new servants (Irri, Doreah and Jhiqui) on how to best please her husband. Doreah, trained in the pleasure palaces of Lys, teaches Daenerys how to use her sexuality to influence Drogo and win the status of an equal in his eyes. Genuine affection blossoms between them. Irri teaches Daenerys to speak Dothraki. Daenerys's growing confidence sees her defy her brother's renewed attempts to control her. She discovers that she is pregnant with Drogo's child. She assuredly predicts that she will have a son, to Drogo's approval. The pregnancy buoys the love between them.
Irri teaches Daenerys to speak Dothraki. Daenerys's growing confidence sees her defy her brother's renewed attempts to control her. She discovers that she is pregnant with Drogo's child. She assuredly predicts that she will have a son, to Drogo's approval. The pregnancy buoys the love between them. Irri teaches Daenerys to speak Dothraki. Daenerys's growing confidence sees her defy her brother's renewed attempts to control her. She discovers that she is pregnant with Drogo's child. She assuredly predicts that she will have a son, to Drogo's approval. The pregnancy buoys the love between them.
When the khalasar reaches the Dothraki city of Vaes Dothrak Daenerys invites Viserys to dinner and arranges fresh clothing for him. Viserys reacts angrily at being dressed in the "rags of savages" and strikes Daenerys. Daenerys hits him back with a heavy gold belt and warns that if he strikes her again she will order his hands removed. Unbeknownst to Daenerys, word of her pregnancy reaches King's Landing, where King Robert Baratheon orders her assassination. Magister Illyrio visits his ally Varys in the city, where they discuss how they will pave the way for the Targaryen restoration.
Daenerys eats the raw heart of a stallion before the eyes of the dosh khaleen, the Dothraki wise women, and names her unborn son Rhaego in honor of her slain brother, Rhaegar Targaryen. The Dothraki crones prophecise that Daenerys' son will be the Stallion Who Mounts the World, the khal of khals who will unite the Dothraki into a single horde that will overrun all the lands of the world.
Viserys is infuriated at how Daenerys has won the love of the Dothraki and tries to steal her dragon eggs and flee. He is stopped by Ser Jorah. Viserys demands that Khal Drogo pay the agreed price in providing troops for the invasion of Westeros. When he threatens Daenerys and her unborn child, Drogo has Viserys executed by pouring molten gold over his head. Daenerys notes that Viserys was not a true dragon, as fire cannot harm a dragon.
Daenerys tries to convince Drogo to invade so their son might claim the Iron Throne, but the Dothraki do not trust ships and water their horses cannot drink. Now that Viserys is dead, Drogo does not feel inclined to honor the bargain. A wineseller attempts to poison Daenerys to fulfill Robert's orders. She is rescued by Ser Jorah and Rakharo. Following the assassination attempt, Drogo reverses his decision and swears that he will lead his forces across the Narrow Sea and seize the Seven Kingdoms in blood and fire. To raise funds to hire the ships necessary for this endeavour, Drogo leads his khalasar into the lands of Lhazar, the 'lamb-men'. They seize loot and slaves that they can sell. Daenerys is appalled at how the Dothraki treat their prisoners, particularly the women, and wins them better treatment. One of Drogo's riders, Mago, objects and challenges Drogo to combat. Drogo slays him easily, but sustains a chest wound. One of the women Daenerys has saved, Mirri Maz Duur, tends to the injury.
The khalasar marches southwards to the edge of a great wasteland, but Drogo's wound festers and he falls from his horse, a grave sign of weakness amongst the Dothraki. Duur continues to treat him, but thinks his wound is fatal. Daenerys convinces her to employ magic to save Drogo's life, which the other Dothraki object to. Ser Jorah kills one of Drogo's bloodriders, Qotho, when he tries to intervene. Daenerys is injured in the altercation and goes into labor. Jorah takes Daenerys to Duur for treatment. Daenerys loses her baby and the khalasar splinters apart, leaving a handful of people behind.
Duur saves Drogo's life, but leaves him in a vegetative state. Daenerys is appalled by the lifelessness of Drogo and smothers him to end his suffering. She constructs a funeral pyre for his body. She places her dragon eggs on it and ties Duur to the pyre. Daenerys steps into the blaze. The following morning it is revealed that she has survived, and three newly-hatched dragons are clinging to her body. Ser Jorah and the remaining Dothraki fall to their knees, proclaiming Daenerys their queen and leader.
Daenerys leads her diminished khalasar across the Red Waste, hoping to find shelter in the far lands of the east. She tries to feed her newborn dragons, but they refuse the raw meat she offers. The mare Drogo gave her as a wedding gift dies of exhaustion and Daenerys decides to send her three bloodriders, Rakharo, Aggo and Kovarro, with their remaining horses to explore in three separate directions, knowing that they are her last hope.
Daenerys is waiting in the Red Waste when Rakharo's horse returns without him. Jorah Mormont approaches the horse and finds Rakharho severed braid and head in his saddle bag, apparently killed by a rival khalasar. Kovarro returns with an invitation from the great city of Qarth. Daenerys leads her people there and is disappointed at the cool reception she receives. She is denied entry by the ruling council, the Thirteen, unless she shows them her dragons, which she refuses to do. When it seems she will be turned away, the Qartheen dignitary Xaro Xhoan Daxos vouches for her and her people.
Daenerys and her people are made guests in Xaro's lavish home. She teaches her dragons to cook and eat their own meat, breathing fire on command. She instructs Doreah to use her skill as a lover to find out more about Xaro. Their host holds a reception for Daenerys and she is introduced to Pyat Pree of the Warlocks of Qarth. He demonstrates his magic by replicating himself and invites her to visit his order at the House of the Undying. Xaro suggests that Ser Jorah has feelings for Daenerys but she denies this. Xaro shows Daenerys the Valyrian steel vault that guards his fortune and offers to fund her return to Westeros in exchange for her hand in marriage. He relays news of the death of King Robert Baratheon. Daenerys seeks the council of Ser Jorah. She is eager to seize the opportunity but he counsels against entering Xaro's debt. He reveals the depth of his feeling for her and his hope for the ruler that she will become. She agrees to take the harder path that he suggests but does not acknowledge his affection.
Daenerys unsuccesfully appeals to the merchant nobles of Qarth to lend her ships. After meeting with the Spice King she returns to Xaro's home to find that it has been attacked; Irri is dead and the dragons are missing. Xaro hosts a council of the Thirteen so Daenerys can appeal to them for aid. During the meeting Pyat Pree reveals that he was responsible and Xaro announces his intention to seize control of the city. The warlock uses his magic to murder the rest of the Thirteen. He repeats his invitation to Daenerys, telling her that her children are at the House of the Undying. Daenerys flees and Jorah attempts to kill Pree but is only able to dissipate one of his many copies.] They take refuge in a disused courtyard and Daenerys convinces Jorah to accompany her to reclaim her dragons despite being certain that it is a trap.
On their arrival Daenerys is separated from her guards by the warlock's magic. She is confronted by a series of visions, including her lost family of Drogo and Rhaego. She has an emotional conversation with Drogo, but ultimately realizes that it is an illusion. Having overcome the temptation she finds herself held captive by Pyat Pree. He tells her that he plans to keep her with her dragons because they increase his power. She tells her dragons to breathe flame at him, using the command that she taught them. With the warlock roasted alive, they are able to escape his tower.
Daenerys returns to Xaro's home to confront him for his treachery and finds him in bed with Doreah. Daenerys takes them to his vault, which proves to be empty, and locks them inside to die. She salvages enough valuables to buy a ship from amongst his possessions.
Unlike many in her House, Dany never inherited the insane tendencies that plagued her father and brother Viserys. She has inherited some of her father's ruthlessness; this is evident when she says that Viserys was not a true dragon due to fire having killed him. She shows compassion to her servants and allies, while her brother is cruel to them. While a little naive, she is quick of understanding. She has also inherited her father's attitude when it comes to betrayal; leaving Doreah to starve in the vault after she betrayed her and helped steal her dragons.
After being wed to Khal Drogo she quickly realizes she is now in a position of power and for the first time in her life is not under the total domination of her brother. Under the instruction of her handmaidens and with encouragement from Mormont she begins to gain confidence and even manages to stand up to her brother during his rages. When he tries to hit her, she violently lashes back and informs him the next time he tries to strike her she will have his hands cut off.
Daenerys is polite and well-spoken. She used to be cowed by her brother's ambitions and his occasional cruel rages, but her time amongst the Dothraki has taught her pride, confidence and skills of command.
Daenerys spent her entire life living on the sufferance of others, bouncing back and forth between one benefactor or the next (like Illyrio Mopatis) with her brother, until whatever dreams they had of supporting the exiles' claim wore off and they'd have to move on to another patron. As a result, Daenerys has never known a true home. Constantly living under her brother's domination has given Daenerys a great empathy with the downtrodden of the world. She is deeply sympathetic to those she perceives as oppressed, while at the same time, her pent up frustration from years of being mentally and physically dominated by her petty would-be-king of a brother make Daenerys capable of being utterly ruthless against those she perceives as oppressing others. This has produced a large amount of black-white thinking in Dany's mind.
Info found on the Game of Throne's wiki.