Empress Shōken
, also known as, was the wife of Emperor Meiji of Japan.
Su (Rip Slyme)
Su (stylized as SU; born 20 November 1973, in Tsujidō, Fujisawa, Kanagawa) is an MC for the hip hop unit Rip Slyme.
His real name is .
Su is also a member of Funky Grammar Unit.
His former wife is singer-songwriter Ai Otsuka.
He has one child.
Artaynte
Artaynte( f. 478 BC), was the wife of the Crown Prince Darius.
Agatha (wife of Samuel of Bulgaria)
Agatha was the wife of Emperor Samuel of Bulgaria.
Ai Otsuka
A piano player since age four, Otsuka composes and co-produces her own songs, as well as writes her own lyrics.
Her music ranges from upbeat pop/rock music to ballads.
Every year, Otsuka also has her own "Love is Born" tour to mark the anniversary of being in the music industry and her birthday in September.
All of the "Love is Born" concerts take place in Japan, ending in her hometown of Osaka.
On "Love is Born 5th Anniversary" in 2008, Otsuka held a leg of the concert in Taiwan, where she performed a Chinese version of her song "Planetarium".
In 2009, Otsuka held 3 "Love is Born
6th Anniversary" concerts in Japan, as well as two concerts in Taiwan.
In 2012, Otsuka debuted as the vocalist of the band Rabbit.
She sold 7 million copies in Japan.
Son Taek-su
Son Taek- su( born 1970) is a South Korean poet and editor.
Kang Hyun-su
Kang Hyun- su( born June 16, 1984) is a North Korean football player.
Ro Hak-su
Ro Hak- su( born 19 January 1990) is a North Korean international football player.
Kim Ki-su
Kim Ki -su( born August 5, 1982) is a North Korean former football player.
Oh Dal-su
Oh Dal -su( born 15 June 1968) is a South Korean actor.

Question: What is the place of birth of Su (Rip Slyme)'s wife?
Answer: Osaka