Question: Where did Ang Em's father die?

Knowledge 1: Ang Em
Kaev Hua III or Barom Reameathiptei  (1674–1731), born Ang Em, was a Cambodian king during Dark ages of Cambodia (r. 1700–1701, 1710–1722).Ang Em was a son of vice king Ang Nan.In 1700, a Vietnamese army under Nguyễn Hữu Cảnh invaded Cambodia, he was installed as the king by Vietnamese.In the next year, Chey Chettha IV surrendered, and was allowed to restore.Ang Em was deposed.Chey Chettha IV abdicated in favour of Thommo Reachea III in 1702.Chey Chettha IV married a daughter to Ang Em; this was a political marriage.However, Thommo Reachea III drove out Ang Em with the help of Ayutthaya Kingdom.Ang Em fled to Saigon in 1705, and sought help from Vietnamese Nguyễn lord.He came back to Longvek with Vietnamese army.In 1710, Ang Em ascended the throne.In 1714, Thommo Reachea III captured Longvek with the help of Ayutthaya Kingdom.Ang Em was in dangerous.A Vietnamese army under Trần Thượng Xuyên and Nguyễn Cửu Phú (阮久富) was sent to Cambodia to help Ang Em.Thommo Reachea III and Chey Chettha IV were defeated and fled to Ayutthaya Kingdom.In 1722, Ang Em abdicated in favour of his son Satha II. [SEP] Knowledge 2: Ang Nan
Batom Reachea III (born Ang Nan; 1654–1691) was a Cambodian vice king (uparaja) during the Dark ages of Cambodia.He reigned from 1682 to 1689.Ang Nan was the grandson of vice king Outey.In 1674, with the help of the Ayutthaya Kingdom, Preah Keo II drove him out.Ang Nan fled to Thái Khang (present day Khánh Hòa Province of Vietnam), and sought help from Vietnamese Nguyễn lord.The Vietnamese army under Nguyễn Dương Lâm (阮楊林) and Nguyễn Đình Phái (阮廷派) invaded Cambodia, captured Prey Nokor (Saigon), then attacked Phnom Penh.Preah Keo II retreated into the forest and Ang Nan was crowned the vice king (uparaja) by the Vietnamese.Ang Nan occupied Prey Nokor, while king Chey Chettha IV occupied Longvek.Both of them paid tribute to Nguyễn lord every year.However, Ang Nan wanted to overthrow Chey Chettha IV.In 1682, he recruited refugees from Ming China whom had settled in Cambodia with Vietnamese immigrants, resumed fighting against Chey Chettha IV.In response, Kau Kan (Bassac, present day Sóc Trăng) and Preah Trapeang (Trà Vinh) were ceded to these Chinese adventures.In 1689, with the help of the Nguyễn lord, he made his last attempt to overthrow Chey Chettha IV.He died in Srey Santhor.
Knowledge 1: Ang Em
Kaev Hua III or Barom Reameathiptei  (1674–1731), born Ang Em, was a Cambodian king during Dark ages of Cambodia (r. 1700–1701, 1710–1722).Ang Em was a son of vice king Ang Nan.In 1700, a Vietnamese army under Nguyễn Hữu Cảnh invaded Cambodia, he was installed as the king by Vietnamese.In the next year, Chey Chettha IV surrendered, and was allowed to restore.Ang Em was deposed.Chey Chettha IV abdicated in favour of Thommo Reachea III in 1702.Chey Chettha IV married a daughter to Ang Em; this was a political marriage.However, Thommo Reachea III drove out Ang Em with the help of Ayutthaya Kingdom.Ang Em fled to Saigon in 1705, and sought help from Vietnamese Nguyễn lord.He came back to Longvek with Vietnamese army.In 1710, Ang Em ascended the throne.In 1714, Thommo Reachea III captured Longvek with the help of Ayutthaya Kingdom.Ang Em was in dangerous.A Vietnamese army under Trần Thượng Xuyên and Nguyễn Cửu Phú (阮久富) was sent to Cambodia to help Ang Em.Thommo Reachea III and Chey Chettha IV were defeated and fled to Ayutthaya Kingdom.In 1722, Ang Em abdicated in favour of his son Satha II. [SEP] Knowledge 2: Chey Chettha IV
Chey Chettha IV( 1656–1725), born Ang Sor, was a Cambodian king during Dark ages of Cambodia( r. 1675–1695, 1696–1700, 1701–1702, 1705–1706).He was the second son of Barom Reachea V( or Barom Reachea VIII) and also a younger brother of Kaev Hua II.Vietnamese army attacked Phnom Penh, the king Kaev Hua II fled into forest.Ang Sor surrendered to Vietnamese.He was crowned the Cambodian king by Vietnamese, while Ang Nan( Padumaraja III) was crowned the vice king( uparaja).Chey Chettha IV occupied Longvek, Padumaraja III occupied Prey Nokor( Saigon).Both of them paid tribute to Vietnamese Nguyễn lord.In 1688, Dương Ngạn Địch, a Chinese adventurer and also a general of Nguyễn lord, was murdered by Hoàng Tiến( 黃進).Hoàng Tiến occupied Mỹ Tho and revolted against Nguyễn lord.Hoàng Tiến also attacked Cambodia.Using this excuse, Chey Chettha IV started to building fortifications and did not pay tribute to Nguyễn lord.In the same year the rebellion was put down, Chey Chettha had to pay tribute like before.Chey Chettha IV abdicated in favour of his sonOutey I in 1695.In the next year Outey I died, Chey Chettha IV restored.Nguyễn Hữu Cảnh was sent to Saigon by Nguyễn lord to expand his southern territory.It violated Cambodia's advantages; Chey Chettha IV tried to drive them out, however, he was defeated.In 1700, Vietnamese army captured Phnom Penh.The vice king( uparaja) Ang Em( Barom Ramadhipati) surrendered to Vietnamese, and ascended the throne.Chey Chettha IV surrendered in the next year, he was allowed to restore.Chey Chettha IV abdicated in favour of his son Thommo Reachea III in 1702.Chey Chettha IV then married a daughter to the vice king Ang Em. But, Thommo Reachea III drove out Ang Em with the help of Ayutthaya Kingdom.Ang E m fled to Saigon, in there he was supported by Nguyễn lord.A Vietnamese army under Nguyễn Cửu Vân( 阮久雲) invaded Cambodia again.Thommo ReacheaIII fled to Ayutthaya Kingdom.Ang E m came back to Cambodia and lived in Longvek.Chey Chettha IV was installed as the king by Vietnamese.He abdicated in 1706, and Thommo Reachea III crowned the king again.With the help of Ayutthaya Kingdom, Thommo Reachea III came back to Cambodia, and captured Longvek in 1714.A Vietnamese army under Trần Thượng Xuyên and Nguyễn Cửu Phú( 阮久富) was sent to Cambodia to help Ang Em.They besieged Longvek.Chey Chettha IV and Thommo Reachea III were forced to flee to Ayutthaya Kingdom.
Knowledge 1: Ang Nan
Batom Reachea III (born Ang Nan; 1654–1691) was a Cambodian vice king (uparaja) during the Dark ages of Cambodia.He reigned from 1682 to 1689.Ang Nan was the grandson of vice king Outey.In 1674, with the help of the Ayutthaya Kingdom, Preah Keo II drove him out.Ang Nan fled to Thái Khang (present day Khánh Hòa Province of Vietnam), and sought help from Vietnamese Nguyễn lord.The Vietnamese army under Nguyễn Dương Lâm (阮楊林) and Nguyễn Đình Phái (阮廷派) invaded Cambodia, captured Prey Nokor (Saigon), then attacked Phnom Penh.Preah Keo II retreated into the forest and Ang Nan was crowned the vice king (uparaja) by the Vietnamese.Ang Nan occupied Prey Nokor, while king Chey Chettha IV occupied Longvek.Both of them paid tribute to Nguyễn lord every year.However, Ang Nan wanted to overthrow Chey Chettha IV.In 1682, he recruited refugees from Ming China whom had settled in Cambodia with Vietnamese immigrants, resumed fighting against Chey Chettha IV.In response, Kau Kan (Bassac, present day Sóc Trăng) and Preah Trapeang (Trà Vinh) were ceded to these Chinese adventures.In 1689, with the help of the Nguyễn lord, he made his last attempt to overthrow Chey Chettha IV.He died in Srey Santhor. [SEP] Knowledge 2: Chey Chettha IV
Chey Chettha IV( 1656–1725), born Ang Sor, was a Cambodian king during Dark ages of Cambodia( r. 1675–1695, 1696–1700, 1701–1702, 1705–1706).He was the second son of Barom Reachea V( or Barom Reachea VIII) and also a younger brother of Kaev Hua II.Vietnamese army attacked Phnom Penh, the king Kaev Hua II fled into forest.Ang Sor surrendered to Vietnamese.He was crowned the Cambodian king by Vietnamese, while Ang Nan( Padumaraja III) was crowned the vice king( uparaja).Chey Chettha IV occupied Longvek, Padumaraja III occupied Prey Nokor( Saigon).Both of them paid tribute to Vietnamese Nguyễn lord.In 1688, Dương Ngạn Địch, a Chinese adventurer and also a general of Nguyễn lord, was murdered by Hoàng Tiến( 黃進).Hoàng Tiến occupied Mỹ Tho and revolted against Nguyễn lord.Hoàng Tiến also attacked Cambodia.Using this excuse, Chey Chettha IV started to building fortifications and did not pay tribute to Nguyễn lord.In the same year the rebellion was put down, Chey Chettha had to pay tribute like before.Chey Chettha IV abdicated in favour of his sonOutey I in 1695.In the next year Outey I died, Chey Chettha IV restored.Nguyễn Hữu Cảnh was sent to Saigon by Nguyễn lord to expand his southern territory.It violated Cambodia's advantages; Chey Chettha IV tried to drive them out, however, he was defeated.In 1700, Vietnamese army captured Phnom Penh.The vice king( uparaja) Ang Em( Barom Ramadhipati) surrendered to Vietnamese, and ascended the throne.Chey Chettha IV surrendered in the next year, he was allowed to restore.Chey Chettha IV abdicated in favour of his son Thommo Reachea III in 1702.Chey Chettha IV then married a daughter to the vice king Ang Em. But, Thommo Reachea III drove out Ang Em with the help of Ayutthaya Kingdom.Ang E m fled to Saigon, in there he was supported by Nguyễn lord.A Vietnamese army under Nguyễn Cửu Vân( 阮久雲) invaded Cambodia again.Thommo ReacheaIII fled to Ayutthaya Kingdom.Ang E m came back to Cambodia and lived in Longvek.Chey Chettha IV was installed as the king by Vietnamese.He abdicated in 1706, and Thommo Reachea III crowned the king again.With the help of Ayutthaya Kingdom, Thommo Reachea III came back to Cambodia, and captured Longvek in 1714.A Vietnamese army under Trần Thượng Xuyên and Nguyễn Cửu Phú( 阮久富) was sent to Cambodia to help Ang Em.They besieged Longvek.Chey Chettha IV and Thommo Reachea III were forced to flee to Ayutthaya Kingdom.

Answer: Srey Santhor