Michael IV or Michael Mirianisdze was Catholicos-Patriarch of All Georgia, from 1178 to 1184, Mtsignobartukhutses-Chkondideli (chancellor) since 1184. Michael held his high offices to the end of his life.

Archbishop of Samtvisi Michael was loyal to King George III. After the resignation of Nikoloz I Gulaberisdze he was appointed as Catholicos-Patriarch of All Georgia. Following the death of George III the question of the legality of Queen Tamar's status was raised by the great feudal lords, but with the vigorous support of the patriarch Michael IV the question was settled in Tamar's favour.^[1] Tamar had to reward the Catholicos-Patriarch Michael's support by making him a chancellor, thus placing him at the top of both the clerical and secular hierarchies.^[2] The queen fully appreciated the negative effects of this act and endeavoured to remody the situation. But it was extremely difficult to fight Mikel Mirianisdze. His high offices, particularly the office of head of the Georgian Church, made him a dangerous adversary, and the queen prepared for the struggle painstakingly, with caution. Tamar failed in her attempt to use a church synod to dismiss the Catholicos-Patriarch Michael.^[2] Michael held his high offices to the end of his life. Subsequently, in order to accentuate his scorn for Michael, the chronicler wrote, reporting Michael's death: "Michael Mirianisdze, Patriarch, Chkondidel-mtsignobartukhutsesi", died and nobody mourned his death".

• Lordkipanidze, Mariam Davydovna; Hewitt, George B. (1987). Georgia in the XI–XII Centuries. Tbilisi: Ganatleba Publishers.
• Suny, Ronald Grigor (1994) [1988]. The Making of the Georgian Nation (2nd ed.). Bloomington and Indianapolis: Indiana University Press. ISBN 0-253-20915-3.

v t e Queen Tamar's reign
Family	Father — George III Mother — Burdukhan Aunt — Rusudan Sister — Rusudan Spouse — Yury Bogolyubsky (until 1185) David Soslan Children — George IV Rusudan Cousin — Demetrius Nephew — Alexios I David Komnenos
Individuals	Michael IV Theodore II Basil IV John VII Anton Gnolistavisdze Anton Kutateli Zakaria II Mkhargrdzeli Ivane Mkhargrdzeli Zakaria of Panaskerti Shalva of Akhaltsikhe Ivane of Akhaltsikhe Zakaria Gageli Sargis Tmogveli Kubasar Chiaber Gamrekeli Toreli Ivane I Jaqeli Guzan Abulasanisdze Abulasan Apridon Zankan Zorababeli Kravay Jaqeli Marushian Vardanisdze Qutlu Arslan Khuashak Tsokali
Notable events	Rise of Orbeli Qurtlu-Arslan's rebellion Civil war (1191) Battle of Shamkor Liberation of Shirvan Battle of Basiani Foundation of Trebizond Empire Ayyubid–Georgian wars Thirty Years' Truce Eldiguzid campaign of Tamar of Georgia Rebellion in Pkhovi and Didoya
Culture	Shota Rustaveli — The Knight in the Panther's Skin Mose Khoneli — Amiran-Darejaniani Chakhrukhadze — Tamariani Ioane Shavteli — Abdulmesiani Histories and Eulogies of the Sovereigns Basil Ezosmodzgvari — The Life of Monarch of Monarchs Tamar
Saeristavo (List of duchies)	Duchy of Svaneti — Baram Vardanisdze Duchy of Racha — Kakhaber II Kakhaberidze Duchy of Abkhazia — Otagho II Shervashidze Duchy of Argveti — Amanelisdze Duchy of Odishi — Vardan I Dadiani Duchy of Kartli — Rati Surameli Duchy of Kakheti — Bakur Dzaganisdze Duchy of Hereti — Asat Grigolisdze Samtskhe — Botso Jaqeli