Original: In Keitai's later years, 527 or 528, the Iwai Rebellion broke out in Tsukushi province, KyÅ "shÅ". Keitai assigned Mononobe no Arakahi as Shogun and sent him to KyÅ "shÅ" to put down the rebellion.
Simplified: Keitai confronted rebellion in KyÅ "shÅ", which was then known as the Island of Tsukushi.