Nàidéwēng 耐得翁 (“The Old Man Who Endures”) — the hào under which the author of the Dūchéng jìshèng 都城紀勝 (KR2k0117) chose to conceal his identity in Duānpíng 2 (1235). The Sìkù tíyào commentary infers that he hid his name out of self-awareness about the dissonance between his celebration of Hángzhōu’s prosperity and the strategic peril of the Southern Sòng on the eve of the Mongol confrontation. Tentatively identified by some modern scholars (after a hint in Zhōu Mì’s Guǐxīn záshí) with Zhào Shīmèi 趙師美 of the Sòng imperial Zhào clan; the identification is not universally accepted. Beyond the autograph of the Dūchéng jìshèng itself, no further biographical information is preserved.