Also regarding decline of Buddhism, can you look into Palas religion according to Wikipedia from 867 Pala ruler, Narayanapala, Palas switched to Shaivism instead of Mahayana Buddhism.
>Before the Pāla Dynasty, Shaivism struck roots in Bengal, but it was during that dynasty that Brahmaņa ministers enhanced their influence and established Hinduism over Buddhism. Especially during the reign of Narayanapala, Shaivism gained an extensive hold upon the minds of people of Bengal. Buddhism's prevalence in the region reduced, gradually becoming blended with Shaivism.[14]
en.m.wikipedia.org
About 1066 ruler and two of his sons. Would be nice if you land all 3 his sons, since they were in war with each other for throne, his youngest son and was called the last great Pala ruler. 1066 ruler and his son's coronation was said to be taken in name of Shiva, though his eldest son was said to Buddhist.
1066 Pala ruler, Vigrahapala III
>The Palas continued to patronise Shaivism, and epigraphic evidence suggests that Mahipala I and Nayapala were initiated as Shaivites by their royal preceptors. Vigrahapala III's Amagachi inscription describes him as "devoted to Śiva worship", and this tradition continued under his successor Ramapala. Poet Sandhyakar Nandi describes Ramapala's son Madanapala as a devotee of Shiva.
[4]
en.m.wikipedia.org
His eldest son, Shurapala II. Buddhist according to Wikipedia. He imprisoned his younger brother but ended up losing to him in the end.
The youngest son, Ramapala the Great.
>A review of the main incidents of Ramapala’s career, such as may be gleaned from contemporary records, reflects the highest credit upon his character and abilities. Beginning his life as an exile from his native land Varendri, and maintaining a precarious existence in a corner of his kingdom, Ramapala succeeded not only in re-establishing his sovereignty over the whole of Bengal, but also in extending his supremacy over Assam and Orissa. He crushed the power of a valiant and popular chief like Bhima and successfully guarded his dominions against such formidable foes as the Gangas, the Chalukyas, and the Gahadavalas. The author of Ramacharita says with legitimate pride that under Ramapala Varendri enjoyed peace for a long period, and no wicked person dared disturb her tranquility."[14]
>Ramapala, along with his older brother Shurapala II, was locked in a bitter struggle with their oldest brother Mahipala II, who ascended the Pala throne after their father's death. They were imprisoned by Mahipala. However, after Mahipala's death at the hands of Kaivarta chief Divya, the brothers fled to distant parts of their kingdom, where they succeeded one another. Shurapala ruled for two years, before being succeeded by Ramapala.[8]
Would be nice if he is great martial stats and rivalry between 3 brothers.