Koshikibu no Naishi

Koshikibu no Naishi (小式部内侍) was a Japanese waka poet of the early eleventh century. One of her poems was included in the Ogura Hyakunin Isshu.

Biography
She was the daughter of Izumi Shikibu and Tachibana no Michisada (橘道貞),  the governor of Mutsu.

Starting around 1009, she joined her mother  in serving Empress Shōshi.

A target of many suitors, she eventually married Fujiwara no Kiminari (藤原公成). They had a child, but she died thereafter, still in her late twenties.

Poetry
Four of her poems were included in imperial anthologies such as the Goshūi Wakashū and the Kin'yō Wakashū.

Ōe-yama
The following poem by her was included as No. 60 in Fujiwara no Teika's Ogura Hyakunin Isshu:

In later literature
Numerous anecdotes about her were incorporated into later treatises on poetry (歌論書) and setsuwa collections.

An otogizōshi, Koshikibu, was also written.