Ikeda Katsumasa
Encyclopedia
was a daimyo
in Japan's Azuchi-Momoyama period
.
His father was Ikeda Nagamasa
and his young brother was Ikeda Tomomasa
.
In 1563, Katsumasa succeeded to a house when his father, Nagamasa died.
These days Ikeda clan
had belonged to Miyoshi clan
.
However, since Miyoshi Nagayoshi died and Miyoshi clan became weak, retainers of Miyoshi clan were divided.
Nagamasa belongint to Miyoshi clan had battled against Itami Chikaoki taking sides with Matsunaga Hisahide
.
In 1568, when Oda Nobunaga
marched his armies into Kyoto having Ashikaga Yoshiaki
as his boss, Katsumasa under Miyoshi clan battled against him.
Because he was not equal to Nobunaga by his nature, he lost and surrendered.
In the result, he served Nobunaga.
Nobunaga let Katsumasa, Chikaoki and Wada Koremasa
rule Settsu Province so that he thought he let powerful clans such as Ikeda clan
become his retainers and rule it stably.
They were called Settsu no san-syugo (摂津の三守護).
In 1570, Katsumasa was purged of Ikeda clan when its infighting happened.
Because of that, it is said that he defected relying on Arima clan
after he relied on Ashikaga Yoshiaki and Hosokawa Hujitaka.
Daimyo
is a generic term referring to the powerful territorial lords in pre-modern Japan who ruled most of the country from their vast, hereditary land holdings...
in Japan's Azuchi-Momoyama period
Azuchi-Momoyama period
The came at the end of the Warring States Period in Japan, when the political unification that preceded the establishment of the Tokugawa shogunate took place. It spans the years from approximately 1573 to 1603, during which time Oda Nobunaga and his successor, Toyotomi Hideyoshi, imposed order...
.
His father was Ikeda Nagamasa
Ikeda Nagamasa
Ikeda Nagamasa was a kokujin and samurai commander in the Sengoku period.Ikeda Katsumasa and Ikeda Tomomasa were his sons.His father was Ikeda Nobumasa and his mother was Miyoshi Masanaga's daughter....
and his young brother was Ikeda Tomomasa
Ikeda Tomomasa
Ikeda Tomomasa was a kokujin and military commander in the Azuchi-Momoyama period.He was the second son of Ikeda Nagamasa, who was a dominant kokujin in Settsu Province.His older brother was Ikeda Katsumasa....
.
In 1563, Katsumasa succeeded to a house when his father, Nagamasa died.
These days Ikeda clan
Ikeda clan
The was a Japanese clan that claimed descent from the Seiwa Genji. In the Edo period, several of the clan's branches were daimyo families, most notably of the Tottori Domain, and Okayama Domain. Takamasa Ikeda, present head of the Okayama Ikeda house is a husband of Atsuko Ikeda, fourth daughter...
had belonged to Miyoshi clan
Miyoshi clan
The Miyoshi clan is a Japanese family descended from Emperor Seiwa and the Minamoto clan . They were a cadet branch of the Ogasawara clan and the Takeda clan....
.
However, since Miyoshi Nagayoshi died and Miyoshi clan became weak, retainers of Miyoshi clan were divided.
Nagamasa belongint to Miyoshi clan had battled against Itami Chikaoki taking sides with Matsunaga Hisahide
Matsunaga Hisahide
Matsunaga Hisahide was a daimyo of Japan following the Sengoku period of the 16th century.A companion of Miyoshi Chokei, he was a retainer of Miyoshi Masanaga from the 1540s. He directed the conquest of the province of Yamato in the 1560s and by 1564 had built a sufficient power-base to be...
.
In 1568, when Oda Nobunaga
Oda Nobunaga
was the initiator of the unification of Japan under the shogunate in the late 16th century, which ruled Japan until the Meiji Restoration in 1868. He was also a major daimyo during the Sengoku period of Japanese history. His opus was continued, completed and finalized by his successors Toyotomi...
marched his armies into Kyoto having Ashikaga Yoshiaki
Ashikaga Yoshiaki
was the 15th shogun of the Ashikaga shogunate in Japan who reigned from 1568 to 1573. His father, Ashikaga Yoshiharu was the twelfth shogun, and his brother, Ashikaga Yoshiteru was the thirteenth shogun....
as his boss, Katsumasa under Miyoshi clan battled against him.
Because he was not equal to Nobunaga by his nature, he lost and surrendered.
In the result, he served Nobunaga.
Nobunaga let Katsumasa, Chikaoki and Wada Koremasa
Wada Koremasa
was a retainer beneath the clan of Oda throughout the latter Sengoku Period of Feudal Japan. Koremasa was the son of Wada Koresuke and directly supported the Ashikaga Shogunate by the time at which he was of eligible age, becoming a primary supporter to Ashikaga Yoshiaki following the murder of...
rule Settsu Province so that he thought he let powerful clans such as Ikeda clan
Ikeda clan
The was a Japanese clan that claimed descent from the Seiwa Genji. In the Edo period, several of the clan's branches were daimyo families, most notably of the Tottori Domain, and Okayama Domain. Takamasa Ikeda, present head of the Okayama Ikeda house is a husband of Atsuko Ikeda, fourth daughter...
become his retainers and rule it stably.
They were called Settsu no san-syugo (摂津の三守護).
In 1570, Katsumasa was purged of Ikeda clan when its infighting happened.
Because of that, it is said that he defected relying on Arima clan
Arima clan
The was a Japanese feudal daimyo family dating to the Sengoku period. Its name "Arima," transliterates as "has horses," reflecting the samurai/cavalry origins of the family. Famous members include Arima Harunobu and Arima Naozumi....
after he relied on Ashikaga Yoshiaki and Hosokawa Hujitaka.