Vameq succeeded on the death of his father, Giorgi II Dadiani, as duke of Odishi (latter-day Mingrelia) in 1384.
According to the early 18th-century Georgian historian Prince Vakhushti, Vameq's status was confirmed by King Bagrat V of Georgia.
[2] During Vameq's tenure, Georgia was subjected to a series of invasions by the Turco-Mongol emir Timur, of which the kingdom's northwestern provinces were largely spared.
He was defeated and killed in a battle with Vameq, who then invited King George VII of Georgia to reoccupy Imereti.
[1][2] Vameq's military exploits are also celebrated in an inscription from the Khobi Cathedral, according to which, Dadiani led a victorious campaign against the Zygii and reduced the fortresses of Gagari (modern Gagra) and Ugagi.