TopicsEras (1018–1422)

Eras (1018–1422)

The complete story in order — from the fall of the First Empire under Byzantine rule in 1018, through the restoration of 1185, the golden age, the long fragmentation, and the final resistance at Vidin. Each chapter covers one span of years with its key events, rulers, and sources. For a visual overview, see the Timeline.

13 chapters· 89 figures· 96 citations
View the visual timeline →

The story in order

1018–1185

Byzantine Rule

The period of Byzantine rule over Bulgaria from 1018 to 1185 was marked by the gradual conquest and integration of Bulgarian territories into the Byzantine Empire, punctuated by resistance efforts and political changes in the Balkans. Byzantine emperors, especially Basil II, implemented military campaigns and administrative reforms to consolidate control, while local Bulgarian and neighboring Serbian leaders navigated complex relationships with the empire.

12 events10 people8 citations
1185–1197

Founding of the Second Empire

The founding of the Second Bulgarian Empire began in 1185 with the uprising led by brothers Ivan Asen and Theodore-Peter against Byzantine rule. This period marked the restoration of Bulgarian statehood, characterized by military campaigns, political consolidation, and the establishment of a dual monarchy. The empire expanded territorially and politically through the reigns of key rulers, culminating in significant victories and diplomatic efforts to assert sovereignty.

6 events10 people8 citations
1197–1207

Kaloyan — Wars with the Crusaders

Between 1197 and 1207, Tsar Kaloyan of the Second Bulgarian Empire engaged in a series of military and diplomatic confrontations with the Crusaders who established the Latin Empire after the sack of Constantinople in 1204. Kaloyan sought to defend Bulgarian independence and expand his influence amid the collapse of Byzantine authority and the rise of new powers in the Balkans.

12 events10 people8 citations
1207–1218

Boril — Internal Struggles

Boril's reign (1207–1218) was marked by internal struggles and external conflicts that challenged the stability of the Second Bulgarian Empire. His attempts to continue the policies of his predecessor, Tsar Kaloyan, met with limited success, as he faced opposition from powerful nobles, territorial losses, and rising heretical movements within Bulgaria.

8 events10 people6 citations
1218–1241

Ivan Asen II — Golden Age

Ivan II Asen ruled Bulgaria from 1218 to 1241, marking the golden age of the Second Bulgarian Empire. His reign was characterized by significant territorial expansion, political consolidation, and cultural flourishing, establishing Bulgaria as a dominant power in the Balkans.

5 events10 people7 citations
1241–1256

First Mongol Invasion

The First Mongol Invasion of Bulgaria (1241–1256) marked a critical period of territorial losses, political upheaval, and shifting alliances for the Second Bulgarian Empire. This era saw the rise of dynastic legitimacy, increased foreign pressure from the Mongols, Byzantines, Hungarians, and internal challenges that shaped Bulgaria's medieval trajectory.

2 events10 people7 citations
1256–1280

Constantine Tikh and Ivaylo's Uprising

The period from 1256 to 1280 in the Second Bulgarian Empire was marked by significant internal and external challenges, including wars with Hungary and Byzantium, the rise of Constantine Tikh to the throne, and the popular uprising led by Ivaylo. This era witnessed complex diplomatic maneuvers, territorial conflicts, and the increasing influence of the Golden Horde over Bulgarian affairs.

8 events10 people7 citations
1280–1300

Onset of Instability

The period from 1280 to 1300 in the Second Bulgarian Empire was marked by significant internal instability, political fragmentation, and external pressures from neighboring powers including the Tatars, Byzantines, Serbs, and emerging Turkish forces. This era saw the rise and fall of several rulers, the influence of powerful aristocratic families, and the gradual erosion of centralized authority, setting the stage for further decline in the 14th century.

12 events10 people7 citations
1300–1330

Theodore Svetoslav — Partial Recovery

The period from 1300 to 1330 marked a phase of partial recovery and consolidation for the Second Bulgarian Empire under the rule of Theodore Svetoslav. Following a period of political fragmentation and external threats, especially from the Tatars and Byzantines, Theodore Svetoslav managed to stabilize the state, strengthen its borders, and assert more active foreign policies, particularly against Byzantium and neighboring powers.

8 events10 people8 citations
1330–1355

Ivan Alexander — Cultural Flourishing

Ivan Alexander ruled the Second Bulgarian Empire from 1331 to 1371, a period marked by both cultural flourishing and political challenges. His reign saw territorial losses, internal fragmentation, and the rise of powerful neighbors like Serbia, alongside increasing threats from the Ottoman Turks.

8 events10 people8 citations
1355–1371

Division of the Empire

The period from 1355 to 1371 marked the division and fragmentation of the Second Bulgarian Empire amid rising external threats, internal political struggles, and the growing power of the Ottoman Turks. This era saw the weakening of centralized authority, the emergence of semi-independent regional rulers, and the eventual vassalage of Bulgaria to the Ottoman Sultan Murad I.

5 events10 people7 citations
1371–1396

Fall to Ottoman Power

The period from 1371 to 1396 marks the decline and fall of the Second Bulgarian Empire under the pressure of the rising Ottoman Empire. The empire was fragmented into three political entities ruled by Ivan Shishman, Ivan Sratsimir, and Ivanko, each facing the Ottoman advance with varying degrees of resistance and submission. The era culminated in the fall of Tarnovo and the death of Ivan Shishman, signaling the end of medieval Bulgarian sovereignty.

10 events10 people8 citations
1396–1422

Vidin Tsardom — Last Resistance

The Vidin Tsardom represented the last bastion of Bulgarian resistance against Ottoman conquest from 1396 to 1422. Despite valiant efforts led by Bulgarian princes and alliances with neighboring powers, the gradual Ottoman expansion culminated in the fall of Vidin, marking the end of independent Bulgarian rule in the region.

6 events10 people7 citations

Key figures

Basil IIByzantine Emperor who completed the conquest of Bulgaria and integrated it into the empire
SamuelBulgarian Tsar who led resistance against Byzantium and expanded Bulgarian territory
Gavril RadomirSon of Samuel and briefly Bulgarian ruler after his father's death
BorilBulgarian ruler who seized power amid internal disputes and continued resistance against Byzantium
Constantine DiogenesByzantine commander who secured Sirmium for the empire
Manuel I ComnenusByzantine Emperor who restored imperial control over the Balkans in the 12th century
Stefan NemanjaFounder of the new Serbian dynasty who initially resisted but later submitted to Byzantine authority
John TaronitByzantine governor (duke) of Skopje and Bulgaria around 1100
BogomilBulgarian priest and founder of the Bogomil heresy during Tsar Peter's reign
Alexius SlavBulgarian noble and rival claimant to the throne during Boril's reignIvan Asen ICo-founder of the Second Bulgarian Empire, military leader, and Tsar who consolidated and expanded the restored stateTheodore-PeterElder brother of Ivan Asen, initially proclaimed Tsar, involved in early negotiations with Byzantium
Isaac II AngelosByzantine Emperor who led campaigns to suppress the Bulgarian uprising
IvankoNoble who assassinated Ivan Asen I, supported by Byzantium
KaloyanTsar of Bulgaria (1197–1207), known for military victories against Byzantium and the Latin Empire and diplomatic relations with the Papacy
Baldwin ILatin Emperor defeated by Kaloyan at the Battle of Adrianople
Ivan II AsenTsar (1218–1241), expanded the empire significantly and restored the Bulgarian Patriarchate
Theodore KomnenosRuler of Epirus defeated by Ivan II Asen at Klokotnitsa
Constantine TikhTsar (1257–1277), his reign ended with his assassination during Ivaylo's uprising
Baldwin of FlandersFirst Latin Emperor of Constantinople, captured at the Battle of Adrianople.
Pope Innocent IIIHead of the Catholic Church who crowned Kaloyan king and influenced Balkan politics.
Enrico DandoloVenetian Doge, prominent leader of the Fourth Crusade and Latin Empire.
Alexios IV AngelosByzantine prince restored briefly to the throne by Crusaders before being overthrown.
Henry of FlandersRegent and later Latin Emperor, opponent of Kaloyan in military campaigns.