Kingdom
According to Dīgha nikāya, Ajātaśatru was born to King Bimbisara and Queen Kosala Devi, who was the daughter of Maha-Kosala, the king of Kosala, and sister of Pasenadi who later succeeded to the throne. The City of Kasi was given to Bimbisara as dowry by Maha-Kosala. After the murder of Bimbisara, Prasenajit took the city back. This resulted in a warbetween Ajātaśatru and Prasenajit <...> This war was thus named Mahasilakantaka, i.e. the battle in which more than a lakh (1,00,000) people died.
Once Queen Padmavati, wife of Ajatashatru, was sitting in her balcony in the evening. She saw Halla and Vihalla kumaras with their wives sitting on Sechanaka elephant and one of the wives wearing the 18 fold divine necklace. Then she heard one of the maidservants speaking from the garden below "It's Halla and Vihalla kumaras and not the king who enjoy the real pleasures of the kingdom" and she thought "what's the use of the kingdom if I do not have both the jewels in my possession?"
So, she shared this thought with Ajatashatru the same night and became excessively insistent in her demand. Ajatashatru at last agreed and sent a request to both his brothers to give the elephant and the necklace to him, which both his brothers denied saying that these gifts were given by their dear father so why should they part from them? Ajatashatru sent the request thrice but got the same reply all three times. This annoyed him a lot, so he sent his men to arrest them. Meanwhile, Halla and the Vihalla kumaras availed a chance and escaped to their maternal grandfather Chetaka who was the king of the great kingdom of the Vaishali republic.
Ajatashatru sent notice thrice to Chetaka to surrender them but was denied by Chetaka. This was enough for Ajatashatru. He called his half brothers, Kalkumaras (10 kalakumaras, those born to King Bimbisara and 10 Kali Queens Kali, Sukali, Mahakali, etc.) to merge their army with his, since it was well known to Ajatashatru that Vaishali republic had always been invincible in the past and he alone would not be able to defeat it. Each Kalkumara brought 3000 horses, 3000 elephants, 3000 chariots and 30000 infantrymen each. On the other hand, Chetaka invited his own allies 9 Mallas, 9 Lichhvis and 18 kings of Kasi-Kosala to fight his grandson Ajatashatru. All these kings came with 3000 horses, 3000 elephants, 3000 chariots and 30000 infantrymen each. Thus all together there were 57000 elephants, 57000 chariots, 57000 horses, and 570000 infantrymen.
In this battle Chetaka was defeated. But Chetaka and others immediately took shelter inside the city walls of Vaishali and closed the main gate. The walls around Vaishali were so strong that Ajatashatru was unable to break through them. Many days passed, Ajatashatru became furious and again prayed to Indra, but this time Indra refused to help him. But Ajatashatru was informed by an oracle of a demi-goddess "Vaishali can be conquered if Sramana (monk) Kulvalaka gets married to a prostitute."
Ajatashatru inquired about the monk Kulvalaka and sent for the prostitute Magadhika disguised as a devout follower. The fallen women attracted the monk towards herself and finally the monk gave up his monkhood and married her. Later Magadhika on Ajatashatru's orders brainwashed Kulvalaka to enter Vaishali disguised as an astrologer. With great difficulty, he did enter Vaishali and learned that the city was saved by a Chaitya (altar) dedicated to Munisuvrata. Kulvalaka then started telling people that this altar is the reason why the city is suffering through a bad period. The people uprooted the altar from its very foundation. Kulvalaka gave a signal and Ajatashatru proceeded as per prior arrangement. This was the last attack. Vaishali was conquered by Ajatashatru.
After conquering Vaishali, Kasi and Kosala (Kaushala) Ajātaśatru conquered 36 republican states surrounding his kingdom and firmly established the predominance of Magadha. Ajatashatru was monarch of a huge kingdom, which covered almost all of modern India's Bihar, Chandigarh, Haryana, Uttarakhand, Himachal Pradesh, Delhi, Uttar Pradesh, One fourth of north Madhya Pradesh, tip of Chhattisgarh, bit of Jharkhand, west Bengal.
Ajātaśatru, with the help of his two ministers Sunidha and Vassakāra, built a fort near the banks of the river Ganges to strengthen the defense of Magadha and named it PātaliGrama (village). Later it developed into a city, which soon became popular as Pataliputra, now known as Patna, the capital of Bihar.
According to Mahaparinirvana sutta, when Pataliputra was being erected, by chance the Buddha came there and praised the city of Pataliputra <...>
https://en.wikipedia.org/wiki/Ajatashatru
According to Dīgha nikāya, Ajātaśatru was born to King Bimbisara and Queen Kosala Devi, who was the daughter of Maha-Kosala, the king of Kosala, and sister of Pasenadi who later succeeded to the throne. The City of Kasi was given to Bimbisara as dowry by Maha-Kosala. After the murder of Bimbisara, Prasenajit took the city back. This resulted in a warbetween Ajātaśatru and Prasenajit <...> This war was thus named Mahasilakantaka, i.e. the battle in which more than a lakh (1,00,000) people died.
Once Queen Padmavati, wife of Ajatashatru, was sitting in her balcony in the evening. She saw Halla and Vihalla kumaras with their wives sitting on Sechanaka elephant and one of the wives wearing the 18 fold divine necklace. Then she heard one of the maidservants speaking from the garden below "It's Halla and Vihalla kumaras and not the king who enjoy the real pleasures of the kingdom" and she thought "what's the use of the kingdom if I do not have both the jewels in my possession?"
So, she shared this thought with Ajatashatru the same night and became excessively insistent in her demand. Ajatashatru at last agreed and sent a request to both his brothers to give the elephant and the necklace to him, which both his brothers denied saying that these gifts were given by their dear father so why should they part from them? Ajatashatru sent the request thrice but got the same reply all three times. This annoyed him a lot, so he sent his men to arrest them. Meanwhile, Halla and the Vihalla kumaras availed a chance and escaped to their maternal grandfather Chetaka who was the king of the great kingdom of the Vaishali republic.
Ajatashatru sent notice thrice to Chetaka to surrender them but was denied by Chetaka. This was enough for Ajatashatru. He called his half brothers, Kalkumaras (10 kalakumaras, those born to King Bimbisara and 10 Kali Queens Kali, Sukali, Mahakali, etc.) to merge their army with his, since it was well known to Ajatashatru that Vaishali republic had always been invincible in the past and he alone would not be able to defeat it. Each Kalkumara brought 3000 horses, 3000 elephants, 3000 chariots and 30000 infantrymen each. On the other hand, Chetaka invited his own allies 9 Mallas, 9 Lichhvis and 18 kings of Kasi-Kosala to fight his grandson Ajatashatru. All these kings came with 3000 horses, 3000 elephants, 3000 chariots and 30000 infantrymen each. Thus all together there were 57000 elephants, 57000 chariots, 57000 horses, and 570000 infantrymen.
In this battle Chetaka was defeated. But Chetaka and others immediately took shelter inside the city walls of Vaishali and closed the main gate. The walls around Vaishali were so strong that Ajatashatru was unable to break through them. Many days passed, Ajatashatru became furious and again prayed to Indra, but this time Indra refused to help him. But Ajatashatru was informed by an oracle of a demi-goddess "Vaishali can be conquered if Sramana (monk) Kulvalaka gets married to a prostitute."
Ajatashatru inquired about the monk Kulvalaka and sent for the prostitute Magadhika disguised as a devout follower. The fallen women attracted the monk towards herself and finally the monk gave up his monkhood and married her. Later Magadhika on Ajatashatru's orders brainwashed Kulvalaka to enter Vaishali disguised as an astrologer. With great difficulty, he did enter Vaishali and learned that the city was saved by a Chaitya (altar) dedicated to Munisuvrata. Kulvalaka then started telling people that this altar is the reason why the city is suffering through a bad period. The people uprooted the altar from its very foundation. Kulvalaka gave a signal and Ajatashatru proceeded as per prior arrangement. This was the last attack. Vaishali was conquered by Ajatashatru.
After conquering Vaishali, Kasi and Kosala (Kaushala) Ajātaśatru conquered 36 republican states surrounding his kingdom and firmly established the predominance of Magadha. Ajatashatru was monarch of a huge kingdom, which covered almost all of modern India's Bihar, Chandigarh, Haryana, Uttarakhand, Himachal Pradesh, Delhi, Uttar Pradesh, One fourth of north Madhya Pradesh, tip of Chhattisgarh, bit of Jharkhand, west Bengal.
Ajātaśatru, with the help of his two ministers Sunidha and Vassakāra, built a fort near the banks of the river Ganges to strengthen the defense of Magadha and named it PātaliGrama (village). Later it developed into a city, which soon became popular as Pataliputra, now known as Patna, the capital of Bihar.
According to Mahaparinirvana sutta, when Pataliputra was being erected, by chance the Buddha came there and praised the city of Pataliputra <...>
https://en.wikipedia.org/wiki/Ajatashatru
