Title: Tokugawa Ieyasu
Content:   Tokugawa Ieyasu was born in Okazaki Castle on the 26th day of the twelfth month of the eleventh year of Tenbun, according to the Japanese calendar. Originally named Matsudaira Takechiyo (松平 竹千代), he was the son of Matsudaira Hirotada (松平 廣忠), the daimyo of Mikawa of the Matsudaira clan, and Odai no Kata (於大の方), the daughter of a neighbouring samurai lord, Mizuno Tadamasa (水野 忠政). His mother and father were step-siblings. They were just 17 and 15 years old, respectively, when Takechiyo was born. In the year of Takechiyo's birth, the Matsudaira clan was split. In 1543, Hirotada's uncle, Matsudaira Nobutaka defected to the Oda clan. This gave Oda Nobuhide the confidence to 
Title: Tokugawa Ieyasu
Content:   Tokugawa Ieyasu was the founder and first shōgun of the Tokugawa Shogunate of Japan, which ruled Japan from 1603 until the Meiji Restoration in 1868. He was one of the three "Great Unifiers" of Japan, along with his former lord Oda Nobunaga and fellow Oda subordinate Toyotomi Hideyoshi. The son of a minor daimyo, Ieyasu once lived as a hostage under daimyo Imagawa Yoshimoto on behalf of his father. He later succeeded as daimyo after his father's death, serving as vassal and general under Oda Nobunaga, building up his strength. After Oda Nobunaga's death, Ieyasu was briefly a rival of Toyotomi Hideyoshi, before declaring his allegiance and fighting on his behalf. Under Toyotomi, Ieyasu was 
Title: Tokugawa Yoshiyori
Content:   Tokugawa Yoshiyori (徳川 慶頼) was a Japanese samurai of the late Edo period. Son of the 3rd generation Tayasu family head, Narimasa, he was head of the Tayasu house twice: in 1839–1863 and 1868–1876. He went to Shizuoka Domain in 1868, and served as the guardian of his son the young daimyō Tokugawa Iesato. He was also the father of Tokugawa Takachiyo and Tokugawa Satotaka. His childhood name was Konnosuke (耕之助).
Title: Tokugawa clan
Content:  Iesato (1863–1940, from Tayasu family) was chosen as the heir to Yoshinobu as the head of Tokugawa clan; on July 7, 1884, Iesato became a prince, just like the heads of some of other notable Japanese noble families, known as Kazoku. The 1946 Constitution of Japan abolished the kazoku and the noble titles, making Iesato's son, Iemasa Tokugawa, no longer a prince. Iemasa had a son Iehide, who died young, so he was succeeded by one of his grandsons, Tsunenari. Tsunenari is the second son of Toyoko (eldest daughter of Iemasa) and Ichirō Matsudaira (son of Tsuneo Matsudaira), and he is also a patrilineal descendant of Tokugawa Yorifusa, the youngest son of Tokugawa Ieyasu.
Title: Gosankyō
Content: [[Image:Tokugawa family crest.svg|20px]] Tokugawa Ieyasu, 1st Tokugawa Shōgun (1543–1616; r. 1603–1605) ; Tokugawa Yorinobu, 1st daimyō of Kishū (1602–1671) ; Tokugawa Mitsusada, 2nd daimyō of Kishū (1627–1705) ; [[Image:Tokugawa family crest.svg|20px]] Tokugawa Yoshimune, 8th Tokugawa Shōgun (1684–1751; 5th daimyō of Kishū: 1705–1716; 8th Tokugawa Shōgun: 1716–1745) ; I. Tokugawa Munetada, 1st Hitotsubashi-Tokugawa family head (1721–1765; Hitotsubashi family head: 1735–1764) ; II. Tokugawa Harusada, 2nd Hitotsubashi-Tokugawa family head (1751–1827; Hitotsubashi family head: 1764–1799) ; [[Image:Tokugawa family crest.svg|20px]] Tokugawa Ienari, 11th Tokugawa Shōgun (1773–1841; r. 1786–1837) ; [[Image:Tokugawa family crest.svg|20px]] Tokugawa Ieyoshi, 12th Tokugawa Shōgun (1793–1853; r. 1837–1853) ; VI. Tokugawa Yoshimasa, 6th Hitotsubashi-Tokugawa family head (1825–1838, Hitotsubashi family 
Title: Tokugawa Ietsugu
Content:  Tokugawa Ietsugu was born in 1709 in Edo, being the eldest son of shōgun Tokugawa Ienobu and concubine, Gekkōin. At that time, his father was shōgun, and was being advised by his long-time Confucian advisor, Arai Hakuseki, who held considerable influence in the shōguns court at Edo. At the time Ietsugu was born, his father, Ienobu, was 48. His childhood name was Nabematsu (鍋松). Arai had traced the Tokugawa family's bloodline back to the Minamoto family, the founders of the first shogunate. Thus, Ietsuga also was called Minamoto no Ietsugu. He was only three years old when his father died, upon which he became shōgun Ietsugu. He married Yoshiko no Miya (1714–1758) in 1715, daughter of Emperor Reigen at that time he was only 4 years and Yoshiko no Miya was only one year old.
Title: Tokugawa Shigeyoshi
Content: Father: Tokugawa Ieshige ; Mother: Oitsu no Kata (1721-1789) later Anshoin ; Wife: Fushimi no Miya Sadako 
Title: Tokugawa Ieyasu
Content:  In 1565, Ieyasu became master of all of Mikawa Province. In 1567 he started the family name "Tokugawa", finally making his name the well-known Tokugawa Ieyasu. As he was a member of the Matsudaira clan, he claimed descent from the Seiwa Genji branch of the Minamoto clan. However, there was no proof the Matsudaira clan are descendants of Emperor Seiwa. Yet, his surname was changed with the permission of the Imperial Court, after writing a petition, and he was bestowed the courtesy title Mikawa-no-kami (Lord of Mikawa) and the court rank of Junior 5th Rank, Lower Grade (從五位下). Though the Tokugawa could claim some modicum of freedom, they were very much subject to the requests of Oda Nobunaga. Ieyasu remained an ally of Nobunaga and his Mikawa soldiers were part of Nobunaga's army which captured Kyoto in 1568. At the same time, Ieyasu was eager to expand eastward to Tōtōmi Province. Ieyasu and Takeda Shingen, the head of the Takeda clan in Kai Province, made an alliance for the purpose of conquering all the Imagawa territory.
Title: Tokugawa Iesato
Content:  Tokugawa Iesato was born to the Tayasu branch of the Tokugawa clan, under the name Kamenosuke, he became its 16th head, following the resignation of the last shōgun, Tokugawa Yoshinobu. His brothers were Tokugawa Satotaka and Tokugawa Takachiyo, who also held the Tayasu headship at different times. Iesato was also briefly the daimyō of the short-lived Shizuoka Domain, before the abolition of the han system in the early 1870s. His guardian at the time was Matsudaira Naritami, the former lord of the Tsuyama Domain. He was an adopted son of the fourteenth shogun, Tokugawa Iemochi and his wife, Kazu-no-Miya Chikako or Seikan'in no Miya (although Iesato was Iemochi's adopted son they only met once. Later Iemochi's foster mother, Tenshō-in, raised Iesato). In 1866 he was sent to Edo Castle as Iemochi's son and was raised by Tenshō-in and Kazu-no-Miya Chikako. In 1868 he was sent to Kyoto by his mother, Kazu-no-Miya Chikako and met with Emperor Meiji. He married the daughter of Konoe Tadafusa, Konoe Hiroko, who bore him Iemasa Tokugawa, the seventeenth Tokugawa family head, Yasuko Tokugawa, who married Nobusuke Takatsukasa and bore him Toshimichi Takatsukasa, Ryōko Tokugawa, and Toshiko Tokugawa.
Title: Tokugawa Ieyasu
Content:   On March 24, 1603, Tokugawa Ieyasu received the title of shōgun from Emperor Go-Yōzei. Ieyasu was 60 years old. He had outlasted all the other great men of his times: Oda Nobunaga, Takeda Shingen, Toyotomi Hideyoshi, and Uesugi Kenshin. As shōgun, he used his remaining years to create and solidify the Tokugawa shogunate, which ushered in the Edo period, and was the third shogunal government (after the Kamakura and the Ashikaga). He claimed descent from the Minamoto clan who had founded the Kamakura shogunate, by way of the Nitta clan. His descendants would marry into the Taira clan and the Fujiwara clan. The Tokugawa shogunate 

Question: Who is the father of Tokugawa Ieyasu?
Answer: Matsudaira Hirotada.