Dhritarashtra

Dhritarashtra (, ISO-15919: Dhr̥tarāṣṭra) was a Kuru king, and the father of the Kauravas in the Hindu epic "Mahabharata". He was the King of the Kuru Kingdom, with its capital at Hastinapura. He was born to Vichitravirya's first wife, Ambika. 
Dhritarashtra was born blind. He fathered one hundred sons and one daughter, Dushala, by his wife, Gandhari and a son, Yuyutsu, by his wife's maid. These children, including the eldest son Duryodhana, but not including Yuyutsu and Dushala, came to be known as the Kauravas.
Etymology and historicity.
"Dhṛtarāṣṭra" means "He who supports/bears the nation"
A historical Kuru King named Dhritarashtra Vaichitravirya is mentioned in the "Kāṭhaka Saṃhitā" of the Yajurveda ( 1200–900 BCE) as a descendant of the Rigvedic-era King Sudas of the Bharatas. His cattle was reportedly destroyed as a result of the conflict with the "vrātya" ascetics; however, this Vedic mention does not provide corroboration for the accuracy of the Mahabharata's account of his reign. Dhritarashtra did not accept the vratyas into his territory, and with the aid of rituals, the vratyas destroyed his cattle. The group of vratyas were led by Vaka Dālbhi of Panchala.
Birth and early life.
With Vichitravirya having died of sickness, Bhishma unable to take the throne because of his vow, and Bahlika's line unwilling to leave the Bahlika Kingdom, there was a succession crisis in Hastinapura. Satyavati invites her son Vyasa to impregnate the queens Ambika and Ambalika under the Niyoga practice. When Vyasa went to impregnate Ambika, his scary appearance frightened her, so she closed her eyes during their union; hence her son was born blind.
Dhritarashtra, along with his younger half-brother Pandu, was trained in the military arts by Bhishma and Kripacharya. Hindered by his handicap, Dhritarashtra was unable to wield weapons, but had the strength of one hundred thousand elephants due to boon given by Vyasa, and was said to be so strong that he could crush iron with his bare hands.
When it came time to nominate an heir, Vidura suggested that Pandu would be a better fit because he was not blind. Though bitter about losing his birthright, Dhritarashtra willingly conceded the crown, though this act would seep into the obsession he would have over his crown later in life. Dhritarashtra married Gandhari of Hastinapura's weakened and lowly vassal Gandhara; After their marriage, Gandhari covered her eyes with a blindfold in order to truly experience her husband's blindness. Gandhari and he had one hundred sons, called the Kauravas, and one daughter Dushala. He also had a son named Yuyutsu mothered by a maid.
Reign.
After the incident with Rishi Kindama, Pandu retired to the forest. Hence, Dhritarashtra was offered the crown. Through the blessings of Vyasa, he and Gandhari had one hundred sons and a daughter, with his eldest son, Duryodhana, becoming his heir. Upon Duryodhana's birth, ill omens appeared; many sages and priests advised Dhritarashtra and Gandhari to abandon the baby. But they refused to do so; Duryodhana grew up with a princely education and his parents believed that he would be a great heir.
However, when Pandu died, Kunti and her sons returned to Hastinapura, living alongside Dhritarashtra's children. Yudhishthira, Pandu's eldest son, was older than Duryodhana. Given that Pandu was the king and that Yudhishthira was born of the god Dharma, he had a strong claim to the throne. A succession crisis began; though recognising Yudhishthira's merits, Dhritarashtra favoured his own son, blinded by affection. Upon much pressure from the Brahmins, Vidura, and Bhishma, Dhritarashtra reluctantly named Yudhishthira as his heir.
Bifurcation of the Kuru Kingdom.
After the House of Lac incident, in which the Pandavas are believed to have been immolated, Dhritarashtra mourns, but was able to finally name Duryodhana as his heir. When the Pandavas are revealed to have survived, Duryodhana refuses to cede his title as heir when the sour relations between the Kauravas and the Pandavas simmer. On Bhishma's advice, Dhritarashtra bifurcates the kingdom, giving Hastinapura to Duryodhana and Khandavaprastha to Yudhishthira.
The game of dice.
Shakuni, Gandhari's brother, was a master of dice as he could load them without his opponents having a clue. He, along with his nephew Duryodhana, conspired in a game of dice and invited the Pandavas to gamble. The Pandavas eventually lost their kingdom, wealth, and prestige and were exiled for thirteen years. Draupadi, the wife of the Pandavas, was humiliated in court after Dushasana tried to disrobe her. The blind king only intervened after counselling with Gandhari when Draupadi was going to curse the Kuru dynasty. Though notables like Vikarna and Vidura objected to the sins of Duryodhana, most of the spectators were helpless due to their obligations to Hastinapura; Dhritarashtra could have spoken out, but did not.
The Kurukshetra War.
Krishna, as a peace emissary of the Pandavas, travelled to Hastinapura to persuade the Kauravas to avoid the bloodshed of their own kin. However, Duryodhana conspired to arrest him, which resulted in the failure of the mission. After Krishna's peace mission failed and a war seemed inevitable, Vyasa approached Dhritarashtra and offered to grant him a divine vision so that Dhritarashtra could see the war. However, not willing to see his kin slaughtered, Dhritarashtra asked that the boon be given to Sanjaya, his charioteer. Sanjaya dutifully narrated the war to his liege, reporting how Bhima killed all his children. Sanjaya would console the blind king while challenging the king with his own viewpoints and morals. When Lord Krishna displayed his Vishvarupa (True form) to Arjuna on the battlefield of Kurukshetra, Dhritarashtra regretted not possessing the divine sight.
Dhritarashtra was confident that Bhishma, Drona, Karna and the other invincible warriors would make the Kaurava camp victorious. He rejoiced whenever the tide of war turned against the Pandavas. However, the results of the war devastated him. All of his sons and grandsons but one were killed in the carnage. Dhritarashtra's only daughter Duhsala was widowed. Yuyutsu had defected to Pandava side at the onset of the war, and was the only son of Dhritarashtra who had managed to survive the Kurukshetra War.
Crushing of Bhima's metal statue.
Dhritarashtra was furious with Bhima for mercilessly slaying all his sons, especially Duryodhana. After the war ended, the victorious Pandavas arrived at Hastinapura for the formal transfer of power. The Pandavas set forth to embrace their uncle and offer him their respects. Dhritarashtra hugged Yudhishthira heartily without a grudge. When Dhritarashtra turned to Bhima, Krishna sensed his intentions and asked Bhima to move Duryodhana's iron statue of Bhima (used by the prince for training) in his place. Dhritarashtra crushed the statue into pieces and then broke down crying, his rage leaving him. Broken and defeated, Dhritarashtra apologised for his folly and wholeheartedly embraced Bhima and the other Pandavas.
Later years and death.
After the great war of "Mahabharata", the grief-stricken blind king along with his wife Gandhari, sister-in-law Kunti, and half brother Vidura left Hastinapura for penance. It is believed that all of them (except Vidura who predeceased him) perished in a forest fire and attained moksha.
Assessment.
Throughout his reign as King of Hastinapura, Dhritarashtra was torn between the principles of dharma and his love for his son Duryodhana. He often ended up endorsing his son's actions merely out of fatherly love.
Dhritarashtra is physically strong, yet psychologically weak, easily manipulated by his brother-in-law, Shakuni. Dhritarashtra appears in "Mahabharata" sections that have been circulated as separate scriptures, most notably the "Bhagavad Gita", whose dialogue was narrated to him.