Takagi Masatsugu was the son of Takagi Kiyohide, one of Tokugawa Ieyasu's 16 Generals. With holdings of 9000 koku scattered across Sagami, Musashi, Kazusa, Shimōsa, and Ōmi Province, he was ranked as a hatamoto. In 1623, he was appointed to the post of Osaka jōban (大坂定番), a minor post which was responsible for guarding the Kyōbashiguchi and Tamazoguchi gates of Osaka Castle for which he received an additional 1000 koku in revenue. This placed his kokudaka over the 10,000 koku mark requited to qualify as a daimyō, and his holdings were consolidated to 22 village in Kawachi Province,where he constructed a jin'ya.
His son, Takagi Masanari acquired an additional 3000 koku in Kazusa and Awa Provinces, but the 3rd daimyō, Takagi Masahiro distributed 1500 koku each to his two younger brothers. During the tenure of the 6th daimyō, Takagi Masanobu,the domain received an exemption from the sankin kōtai requirement to travel to Edo on alternative years to attend the Shogun's court. Instead, the daimyō of the domain resided permanently in Edo, and managed the domain's affairs though a daikan and other officials. In 1769, under the 8th daimyō, Takagi Masanori, a widespread peasant's revolt occurred in the domain which resulted in22 village headmen being summoned to the domain's Edo residence. As a result, the Shogunate blamed Masanori for mismanagement and banned him from entering Edo Castle. During the Bakumatsu period, the 12th daimyō, Takagi Masahiro was ordered to dispatch troops in 1866 to suppress a revolt which had arisen in tenryō territory in what is now Kashiwara. The clan's finances, which had been in arrears since the mid-Edo period were close to collapse, with debts exceeding 39,000 ryō. In 1868,the han school, "Tannan Gakkō" was opened. The final daimyō, Takagi Masayoshi, served as imperial governor until the abolition of the han system in 1871. He was ennobled with the kazoku peerage title of viscount(shishaku) in 1884.
The site of the jin'ya became a field of private land in 1921 and there now no trace left. An archaeological excavation in 1999 confirmed the foundations of the jin'ya and the han school.
Holdings at the end of the Edo period
As with most domains in the han system, Tannan Domain consisted of several discontinuous territories calculated to provide the assigned kokudaka, based on periodic cadastral surveys and projected agricultural yields.[4][5]
