Féngyìzǐ 馮翊子 (zì Zǐxiū 子休, fl. late 9th — early 10th c.) is the pseudonymous compiler of the Guìyuàn cóngtán 桂苑叢談 KR3l0108, a one-juàn late-Táng / Wǔdài 五代 zhìguài and anecdote-collection. “Féngyìzǐ” — “Master of Féngyì” — uses the old Hàn place-name Féngyì 馮翊 (the Western-Hàn Sānfǔ 三輔 commandery of Zuǒféngyì 左馮翊, in modern east-central Shǎnxī) as a jùnwàng-style designation. The Xīn Táng shū Yìwén zhì records the Guìyuàn cóngtán under the name “Féngyìzǐ Zǐxiū zhuàn” without indicating a surname. A Sòng-period note transmitted by Lǐ Shū’s 李淑 Hándān shūmù 邯鄲書目 (cited by Cháo Gōngwǔ in the Jùnzhāi dúshū zhì) gives the surname as Yán 嚴; the Sìkù compilers cautiously endorse this and propose that “Féngyìzǐ” is the hào and “Zǐxiū” the zì. No other office or biographical detail is recorded.
His one securely datable activity is the compilation of the Guìyuàn cóngtán, whose Gānlù tíng 甘露亭 entry refers to “the year the Prince of Wú recovered Zhèyòu 浙右” — fixing the lower bound of composition at Tiānfù 天復 2 (902), the year Yáng Xíngmì 楊行密 was first enfeoffed as Wúwáng 吳王 by Táng Zhāozōng 唐昭宗. The Sìkù compilers infer from the local detail of his book that he was a man of Jiāngnán in the Wú 吳 (902–937) court milieu. No CBDB record under either “Féngyìzǐ” or “Yán Zǐxiū.”