Hirose Kagefusa was a senior retainer to Tokugawa Ieyasu

Tokugawa Ieyasu

 was the founder and first shogun of the Tokugawa shogunate of Japan , which ruled from the Battle of Sekigahara  in 1600 until the Meiji Restoration in 1868. Ieyasu seized power in 1600, received appointment as shogun in 1603, abdicated from office in 1605, but...

 throughout the latter Sengoku Period

Sengoku period

The or Warring States period in Japanese history was a time of social upheaval, political intrigue, and nearly constant military conflict that lasted roughly from the middle of the 15th century to the beginning of the 17th century. The name "Sengoku" was adopted by Japanese historians in reference...

 of Feudal Japan. With the speculation that Kagefusa supported the Takeda at the time at which he was eligible for vassalship, he became a supporting vassal to Senior Retainer Yamagata Masakage

Yamagata Masakage

was one of the 24 generals of the Takeda clan. He was famous for his red armour and skill in battlefield, and was a personal friend of Takeda Shingen. He was the younger brother of Obu Toramasa who was also a retainer of Shingen leading the famous "red fire unit"...

 initially around such a time, where he supported the former within many numerous engagements such as Mimasetoge

Battle of Mimasetoge

The battle of Mimasetōge took place in 1569, as the forces of Takeda Shingen withdrew from repeated failed sieges of the Hōjō clan's Odawara Castle in the Kanagawa Prefecture of Japan. The Hōjō forces, led by the brothers Ujiteru and Ujikuni, laid in wait for him in the pass of Mimase...

 of 1569. Presently during the Battle of Nagashino

Battle of Nagashino

The ' took place in 1575 near Nagashino Castle on the plain of Shitaragahara in the Mikawa province of Japan. Forces under Takeda Katsuyori had besieged the castle since the 17th of June; Okudaira Sadamasa , a Tokugawa vassal, commanded the defending force...

 in 1575, it is highly suspectable that as Masakage was the commander of Takeda Katsuyori

Takeda Katsuyori

was a Japanese daimyo of the Sengoku Period, who was famed as the head of the Takeda clan and the successor to the legendary warlord Takeda Shingen. He was the son of Shingen by the , the daughter of Suwa Yorishige...

's leftern cavalry wing, Kagefusa was additionally a subordinate to such a force, but he regardlessly survived such a dilemmic situation despite the death of his respective comrades, including Masakage, after volleys of gunfire were deployed by the Oda

Oda clan

The was a family of Japanese daimyo who were to become an important political force in the unification of Japan in the mid-16th century. Though they had the climax of their fame under Oda Nobunaga and fell from the spotlight soon after, several branches of the family would continue on as daimyo...

 arquebusier contingents. Following the Oda/Tokugawa

Tokugawa clan

The was a powerful daimyo family of Japan. They nominally descended from Emperor Seiwa and were a branch of the Minamoto clan by the Nitta clan. However, the early history of this clan remains a mystery.-History:...

 alliance's desolation of the Takeda's domain of Kai

Kai Province

, also known as , is an old province in Japan in the area of Yamanashi Prefecture. It lies in central Honshū, west of Tokyo, in a landlocked mountainous region that includes Mount Fuji along its border with Shizuoka Prefecture....

 in the year of 1582, Kagefusa rationally defected over to Tokugawa Ieyasu and became retainer to one of the latter's pillars of power: Ii Naomasa

Ii Naomasa

was a general under the Sengoku period Daimyo, and later Shogun, Tokugawa Ieyasu. He is regarded as one of the Four Guardians of the Tokugawa along with Honda Tadakatsu, Sakakibara Yasumasa and Sakai Tadatsugu.-Early life:...

. As it is recorded that Kagefusa became highly trusted and respected by his new commander, this in part can be justified by notable bravery during the Battle of Mikatagahara

Battle of Mikatagahara

The ' was one of the most famous battles of Takeda Shingen's campaigns, and one of the best demonstrations of his cavalry-based tactics.-Background:...

 of 1584, the Odawara Campaign in 1590, and the following Sekigahara Campaign during the year of 1600, which scored for Kagefusa a more prominent name beneath the Tokugawa. Entering the Edo Period

Edo period

The , or , is a division of Japanese history which was ruled by the shoguns of the Tokugawa family, running from 1603 to 1868. The political entity of this period was the Tokugawa shogunate....

 with an increase of 1,500-koku by means of his former performance, Kagefusa took part in the Osaka Winter Campaign; and by the end of this campaign, Kagefusa had been invited for a personal drink with Tokugawa Ieyasu to honor his present and former merits. As Kagefusa was initially an old man at the time at which he was invited to drink with his lord, it is emphasized that he died some time within the neighboring future, as the specific time of his death is unknown.