Sugawara no Takasue no musume (菅原孝標女, c.1008 – after 1059), also known as Takasue's Daughter and Lady Sarashina, was a Japanese noble woman, poet, and author best known for writing the Sarashina Nikki, a Heian period travel diary recording her life and travels from her teenage years to her fifties.

[6] Her surname distinguishes her as a direct descendant of Sugawara no Michizane, a prominent statesman, scholar, and poet of the Heian period.

An annotated copy of the diary handwritten by Fujiwara no Teika provides reliable historical information on dates and names.

When she was approximately twelve years old, she began recording a daily account of her events which would later become known as the Sarashina Nikki.

In 1020, as her father's term in Kazusa Province expired, her family returned to Kyoto and lived in a large residence on Sanjo Street until 1023, when the house burned down.

The following year in 1024, her elder sister died in childbirth and in 1025, Sugawara no Takasue failed to obtain a provincial governorship, meaning a period of financial difficulty for the family.

A poem she composed during that meeting secured her a place in the Shinkokinshu, one of two most prestigious Japanese imperial anthologies of all time.

Since Takasue's Daughter lost her house in a fire in 1023, and her father failed to obtain a provincial governorship in 1025, she is left without a suitable grand residence, meaning her family would have been unable to arrange a good marriage for her.