The see of Amyclae dates to 1082, when the Bishopric of Lacedaemon was raised to the rank of a Metropolitan see, and authorized to form three suffragan sees at Amyclae, Pissa and Ezeroi. Despite its name, the new bishopric was not located at ancient Amyclae, a town near Sparta, but rather on the site of ancient Tegea in Arcadia, which through some unclear process had received the name of Amyklion by the 10th century. The bishopric of Amyclae was thus regarded as the successor of the long-defunct see of Tegea, attested as late as the Fourth Ecumenical Council in 451, but later abandoned, like much of Arcadia, as a result of the Slavic incursions of the late 6th century. The only known bishop of the see's early period is Nicholas Mouzalon in the second half of the 12th century.
Latin bishopric
Nikli and the rest of Arcadia were captured by the Crusaders in circa 1206–09, becoming part of the new FrankishPrincipality of Achaea, which soon came to encompass most of the Peloponnese. The Chronicle of the Morea depicts Nikli as a site of some importance and fortified, which fell to the Crusaders only after a siege. It became the seat of a secular barony, while a Roman Catholic bishop was installed in the episcopal see: the bishop Gilbert of Amyclae is attested in an act of September 1209. In 1222, the bishopric was united with the Metropolitan see of Lacedaemon.
Titular Latin see
It is a suppressed titular see of the Catholic Church, counting 18 incumbents between 1541 and the death of the last holder in 1937. It has had the following incumbents, all of the lowest rank :
Nikli was still in Frankish hands in 1280, but was lost to the resurgent Byzantines by 1302. With the progressive Byzantine recovery of much of the Peloponnese in the late 13th and early 14th centuries, the Orthodox clergy was reinstated in many of its former sees, and new ones were founded; thus in the mid-14th century, Amyclae was once more made a bishopric, again as a suffragan of the Metropolis of Lacedaemonia. The Orthodox see continued in existence thereafter: in 1562 it is recorded as the first-ranked among the suffragans of Lacedaemon. In the aftermath of the Orlov Revolt and the invasion of the Peloponnese by Albanian irregulars, its bishop, Cyril, fled to Zakynthos and thence aboard four Russian warships to the Crimea. In 1804, the see of Amyclae was united with that of Tripolitsa into the Bishopric of Amyclae and Tripolitsa, with the bishop Nikephoros of Amyclae assuming the new see. In May 1817, the see was elevated to the rank of a Metropolis, and in 1819, the bishopric of Olena was merged into it. Following the establishment of the independent Kingdom of Greece and the autocephaly of the Church of Greece in 1833, it became the Metropolis of Mantinea and Megalopolis.
