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Names
	Uchima Kanemaru (内間金丸); later Shō En (尚圓)

Shō En
尚円 shoo in
Shō En; 尚円 shoo in
	Formal royal portrait of King Shō En by Kobashigawa Chōan.
King of Ryukyu
Reign	1469–1476
Predecessor	Shō Toku
Successor	Shō Sen'i
Born	Umitukugani (思徳金); 1415; Izena, Okinawa
Died	July 28, 1476 (aged 60–61); Shuri, Ryukyu Kingdom
Burial	Miyaagimui-utaki, Shuri (1476); Tamaudun, Shuri (reburied, 1501)
Spouse	Ogiyaka (Ujaka) (Yosoidon/Yushiiudun)
Concubine	Kimikiyora no Ajiganashi; Mamuta Oyabu no Imouto Uchima Noro; Adaniya Noro; Henzan Noro
Issue	Shō Shin, Crown Prince Kume-Nakagusuku; Princess Otochitonomo-kane; Uchima Ufuya; Adaniya Wakamatsu; Yamauchi Shōshin
Names
Names
	Uchima Kanemaru (内間金丸); later Shō En (尚圓)
Divine name	Kanamaru-aji-sohesuwetsugiwaunise (Kanamaru aji shiishii chiji oo nii shi(金丸按司添末続王仁子)
House	Second Shō dynasty
Father	Shō Shoku
Mother	Zui Un

Shō En (尚圓, 1415–1476, r. 1470–1476), previously known as Uchima Kanemaru (内間金丸), was a king of the Ryukyu Kingdom and the founder of the Second Shō dynasty.

Early life and rise to power

Kanamaru was born into a family of peasant farmers on Izena Island,^[3]^[4] a tiny island which lies off the northwestern coast of Okinawa Island. It is said that his parents died when he was around twenty and undertook to provide for his aunt and uncle, brother and sister, and his wife, whom he married at a very young age.^[5]

In one year in which the island had suffered from a particularly severe drought, the rice paddies of Kanamaru's family were found to be full of water; accused of having stolen the water, Kanamaru was forced to flee his home, and ended up in Ginama, in the northern region (Kunigami) of Okinawa Island.^[3]^[4]

After several years living in Ginama, there too some type of dispute or disagreement between Kanamaru and his neighbors emerged.^[5] Leaving Ginama, he traveled to Shuri, the capital of the Ryukyu Kingdom, in 1441, and became a servant or retainer to the prince, Shō Taikyū. After Shō Taikyū became king in 1454, Kanamaru was made royal treasurer,^[5] and was in 1459^[4] granted the post of Omonogusuku osasu no soba (御物城御鎖側), a position involving responsibility for matters regarding foreign relations and trade. He was also granted territory, and made Lord of Uchima (内間御殿, Uchima-udun).^[3]^[4]

There emerged a difference of opinion between Kanamaru, and Shō Toku, who succeeded Shō Taikyū as king in 1461,^[3]^[4] possibly over the king's costly military efforts on the island of Kikai,^[5] leading Kanamaru to leave Shuri and retire to Uchima.^[3]^[4] Shō Toku died shortly afterwards, however, and it is said that in the ensuing discussions among the elder bureaucrats to choose a successor, Kanamaru was selected by popular demand, and thus came to the throne, taking the royal name Shō En.^[4] Historian George H. Kerr, however, points out that official histories produced in the following centuries were written with the patronage of Shō En's successors; also that the circumstances surrounding Shō Toku's death remain something of a mystery, and the traditional account may simply indicate that there was a shift in allegiances among the aristocrats and bureaucrats towards Kanamaru, or that those parties in support of Kanamaru simply outnumbered those on the side of the late king.^[5]

Reign

Shō En thus established the Second Shō dynasty, taking on the honorary surname granted the kings of Ryukyu by the Ming dynasty (and later, Qing dynasty) of China. He also banned members of the former Shō dynasty from high government office, and from marrying into the new royal family, and took steps to elevate the prestige of his own family. His father came to be honored as King of Izena, and a formal tomb was constructed for Shō En's parents on Izena Island. Shō En also named his sister high priestess, or "noro", of Izena; the lineage of high priestesses descended from her continued until the 20th century.^[5]

His reign marked the beginning of an institutional shift in the royal government, away from rule by a charismatic or otherwise gifted individual leader, i.e. the king, and towards a more bureaucratic system, with the king at its center.

Shō En's childhood wife is believed to have died, or otherwise separated from Kanamaru, before he rose to prominence at Shuri. He had his first son with his second wife, Yosoidon. Shō En died in 1476, after ruling for only a few years, and was succeeded by his brother Shō Sen'i, to Yosoidon's chagrin. Presently, the high priestess, daughter of the late king and Yosoidon, received a divine message indicating that Shō Sen'i should abdicate in favor of his nephew, son of Shō En, who then took the throne as Shō Shin.

Notes

^ ^a ^b 見上森御嶽（みやーぎむいうたき）. Okinawa Prefectural Library (in Japanese).
^ 琉球国王の神号と『おもろさうし』 (PDF) (in Japanese).
^ ^a ^b ^c ^d ^e "Shō En." Okinawa rekishi jinmei jiten (沖縄歴史人名事典, "Encyclopedia of People of Okinawan History"). Naha: Okinawa Bunka-sha, 1996. p39.
^ ^a ^b ^c ^d ^e ^f ^g "Shō En." Okinawa konpakuto jiten (沖縄コンパクト事典, "Okinawa Compact Encyclopedia"). Ryukyu Shimpo (琉球新報). 1 March 2003. Accessed 30 October 2008.
^ ^a ^b ^c ^d ^e ^f Kerr, George H. Okinawa: The History of an Island People. Tokyo: Tuttle Publishing, 2000. pp102-104.