The garden changed hands many times. After several owners, the estate became the Shiba residence of the Kii Tokugawa family around the end of the Edo period. In 1875 it passed to the Imperial Household Ministry, and in 1876 it became a detached palace, the Shiba Rikyu. That is where the name comes from. Rikyu means detached palace, and Kyu means former. The next chapter began in 1924. In January of that year the garden was given to Tokyo City to mark the marriage of the future Showa Emperor. The ground was restored and put in order. On April 20, 1924, it opened to the public. First it was called Kyu Shiba Rikyu Garden, and by the end of the year it had taken the name Kyu Shiba Rikyu Onshi Garden. Onshi means an imperial gift. The garden is now a Tokyo metropolitan garden, protected as a cultural property for its artistic and scenic value. A place once reserved for a lord, then for the imperial household, is now open to anyone who walks in.