Pierre de Courtenay

... After Baudouin I was defeated and captured by the Bulgarian Emperor Kalojan at the Battle of Adrianople (1205), his successor, Henry I of Thrace (reigned 1206-16), defeated the Bulgarians and consolidated his control over Thrace, and also expanded his territory in Asia Minor by fighting the Greek Emperor Theodore I of Nicaea (Lascaris), thus increasing the power of the country. After Henry's death, however, his sister Yolande's husband, Pierre de Courtenay, who had been appointed his successor, was captured by the Greek Emperor Theodore I of the Epirus Empire in the Albanian mountains on his way to Constantinople from the west (1217). Under his son Robert de Courtenay (reigned 1221-28) and his brother Baudouin II (reigned 1228-61), both of whom were young, the Latin Empire rapidly declined. The Nicaean Empire took over Asia Minor, as well as Lesbos, Chios, and Samos, and in Thrace, the Nicaean Empire and the Epirus Empire narrowed their control to the area around Constantinople. In July 1261, the capital was taken by the Nicaean Emperor Michael VIII in a surprise attack, and the Latin Empire was destroyed.

*Some of the terminology that mentions "Pierre de Courtenay" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…　ボードアン1世がブルガリア皇帝のカロヤンKalojanにアドリアノープルの戦で敗北して捕虜となった(1205)後，後継者の弟アンリHenri de Hainau(在位1206‐16)はブルガリア人を討ってトラキアの支配を固め，小アジアでもニカエア帝国のギリシア皇帝テオドロス1世(ラスカリス)と戦って領土を広げ，国威は伸張した。しかしアンリ帝死後，後継者に指名されたその姉妹ヨランデYolande de Hainautの夫ピエールPierre de Courtenayは，西方からコンスタンティノープルに赴く途次アルバニア山中でエピロス帝国のギリシア皇帝テオドロス1世に捕らえられ(1217)，息子のロベールRobert de Courtenay(在位1221‐28)，続いて後者の弟ボードアン2世(在位1228‐61)と，いずれも幼少で即位した皇帝のもとでラテン帝国は急速に衰退し，小アジアの領土およびレスボス，キオス，サモスをニカエア帝国によって奪われ，トラキアでは同帝国およびエピロス帝国によってコンスタンティノープル周辺に支配を狭められた。1261年7月首都は奇襲でニカエア皇帝ミハエル8世の手に落ち，ラテン帝国は滅びた。…

※「Pierre de Courtenay」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報