Bǎotán 寶曇 (1129 – 21 May 1197), Southern-Sòng Línjì 楊岐 Chán master; zì Shǎoyún 少雲, hào Júzhōu lǎorén 橘洲老人 (“Old Man of Mandarin-Orange Island”) — whence his common name Júzhōu Tán 橘洲曇. Native of Lóngyóu 龍游 (the Jiādìng 嘉定 region of Sìchuān), lay surname Xǔ 許. Dharma-heir of the great Línjì master Dàhuì Zōnggǎo 大慧宗杲 (1089–1163).
He was tonsured at Déshānyuàn 德山院 in his home prefecture, then travelled to Chéngdū to study under Zhāojué Chèān 昭覺徹庵 and Báishuǐ Liùān 白水六庵. Leaving Sìchuān, he studied successively under Dàhuì Zōnggǎo at Yùwángshān 育王山 and Jìngshān 徑山, under Dōnglín Wànān Dàoyán 東林卍庵道顏, and under Jiǎngshān Yīngān Tánhuá 蔣山應庵曇華. He served as abbot at Zhàngxīshān Yánshòu Chányuàn 仗錫山延壽禪院 in Qìngyuánfǔ 慶元府 (Sìmíng / Níngbō, Zhèjiāng), then returned to Sìchuān to bury his parents and to Wúwéisì 無為寺. Returning again to Sìmíng, he was deeply esteemed by the chief minister Shǐ Hào 史浩 (1106–1194), who built a retreat for him on Júzhōu 橘洲 (“Mandarin-Orange Island”) in the Yǒngjiāng 甬江, hence the hào Júzhōu lǎorén.
He compiled the 《大光明藏》 Dà guāngmíng zàng (KR6r0090, X79 no. 1563), 3 juan — a Chán-school biographical-historiographical compendium tracing the dharma-transmission lineage from the Seven Buddhas of the Past through the Indian patriarchs, the early Chinese Chán patriarchs, the Wǔjiā 五家 (“five houses”), and forward to Dàhuì Zōnggǎo, his own master. The work is a Línjì-school articulation of the lineage tradition. He died at Júzhōu in Qìngyuán 慶元 3 / 4 / 26 (= 21 May 1197) at age 69. Per DILA Buddhist Person Authority A001930.
Works in the Kanripo corpus: KR6r0090 Dà guāngmíng zàng.