Metropolitan Oleksander was bishop of the Polish Autocephalous Orthodox Church, and played a key role in the rebirth of the Ukrainian Autocephalous Orthodox Church (UAOC).

He was born Mykola Inozemtsev in Tobol'sk, Russia in either 1882 or 1887. He studied in the Tobol'sk seminary, and then in the St. Petersburg Theological Academy. He received monastic tonsure in 1912, escaped Kharkiv in 1919 ahead of the Red Army and after traveling to Constantinople, he moved to within the borders of the Second Polish Republic in 1921.

He was ordained bishop in 1922 at the Pochaiv Lavra by Metr. Iurii (Iaroshvs'kyi) and Abp. Dionisii (Vlandens'kyi) and was assigned to the Pins'k-Polissya epharchy. He was a strong proponent of Polish Autocephaly, which became a reality in 1924. He was elevated to Archbishop in 1927.

After the 1939 annexation of the region by the Soviet Union, the local exarch of the Russian Orthodox Church demanded that all local bishops travel to Moscow to attest to their allegience to the Patriarch of Moscow. Abp. Oleksander was one of only two bishops who refused to do this. He adopted a very supportive stance toward Ukrainianization efforts and the creation of the UAOC in 1942. He presided over the February 1942 Sobor of Bishops in Pins'k, where he was elevated to Metropolitan, and where he participated in the ordinations of bishops Nikanor and Ihor for the UAOC.

In 1944 he left Pinsk for Munich. He was accepted the jurisdiction of Russian Orthodox Church Outside of Russia (ROCOR), but in May 1946 the ROCOR Synod condemed the UAOC and rescinded his acceptance. He died suddenly in Munich in February 1948.