Before the establishment of the Banten Sultanate, the end of the western tip region in Java Island plays an important role for the Sunda Kingdom. Banten was a large trading port. Various types of vessel entered the Ciujung River, and most of them are used to transport crops that were harvested from the interior regions. Therefore, the ruler of the region, Prince Pucuk Umun considers that the sustainability of the river needs to be maintained. So an army of highly trained royal troops was commanded to guard and to manage the dense and hilly jungle areas in the region of Mount Kendeng. The existence of the troops with their specific duties to that area seems to be the pioneer of the Kanekes community which still inhabit the upstream of Ciujung River at Gunung Kendeng. The disagreement of this theory led to the notion that in the past, their identity and historicity had been intentionally concealed, which was probably to protect the Kanekes community themselves from the attacks of the Sunda Kingdom of Pajajaran's enemies. Van Tricht, a doctor who had done medical research in 1928, denied the theory. According to him, the Kanekes people are natives of the region who have strong resistance to external influences. The Kanekes people themselves also refuse to acknowledge that they are from the fugitives of Pajajaran, the capital of the Kingdom of Sunda. According to Danasasmita and Djatisunda, the Baduy people are local to the settlements that are officially mandated (as sacred region) by the king because the people are obliged to preserve the "kabuyutan" (ancestral or ancestral worship), are neither Hindu or Buddhist. The ancestral worship in this area is known as "Kabuyutan Jati Sunda" or "Sunda Asli" or "Sunda Wiwitan" ("wiwitan" = original, origin, principal, native). Therefore, their ethnic religion was also given the name of Sunda Wiwitan. Another theory suggests that they originate in northern Banten; pockets of people in the northern hills still speak the archaic dialect of Sunda that the Baduy use. The religion of the Baduy is known as "Agama Sunda Wiwitan", an ancestral teaching that is rooted in ancestral worship and honoring or worshiping spirits of natural forces (animism). According to "kokolot" (elder) of Cikeusik village, Kanekes people is not adherent of Hinduism or Buddhism, they follow animism, the belief that venerated and worshiped the spirit of ancestors.