Taghachar, also spelled Tajir, Ta'achar (Georgian: ტოღაჩარ, Persian: طغاچار; died c. 1296) was a commander in the Mongol Empire's army.
[2] Just like Buqa, as an orphaned person whose father died in battle he was given great importance and care by Abaqa, later he became his inaq – a trusted follower[3] and a member of keshig.
Moving from capital on 28 March, he arrived on banks of Karasu river (on north of the Derbent) and was victorious against Nogai's commander Toqay Noyan and Terktay Bahadur.
Arghun was seriously ill and apparently couldn't speak, which gave Taghachar his allies the opportunity of removing their rivals in court, starting with Sa'ad al-Dawla.
He invited the Arghun's senior emirs Orduqiya, Josh, and Qujan to a feast in honor of his ward Khitay's birthday on 4 March, where they were arrested.
However, he could stay much in capital and had to leave for Anatolia hearing news of Turcoman rebellion, appointing Shiktur Noyan as regent of the state while confirming Prince Anbarchi (son of Möngke Temür) as viceroy of East stationed in Ray.
Taghachar was only pardoned by Gaykhatu in 1292, even appointing Sa'ad al-Din Zanjani to the post of vizier on 18 November 1292 and his ward David as king of Georgia.
However, seeing advances of Nawruz against Baydu and his protege Sa'ad al-Din Zanjani's loss of vizierate, he against changed sides and joined Ghazan.
Ghazan confirmed Taghachar as viceroy in Rûm on 9 December because he had concerns over his continued loyalty and thought it safer to keep him at a distance.
However, Ilkhanid prince Sogai (son of Yoshmut) refused to join campaign in Khorasan, believing this was Nawruz's plot further deprive nobility of their possessions.
Shortly afterwards Ghazan reluctantly ordered the murder of Taghachar; he recognised that he had been a help and that he was not an imminent threat, and explained his decision by reference to Chinese story about execution of a commander who saved a future emperor by betraying a former one.