This is a family tree of all the Eastern Roman Emperors who ruled in Constantinople

Constantinople

Constantinople was the capital of the Roman, Eastern Roman, Byzantine, Latin, and Ottoman Empires. Throughout most of the Middle Ages, Constantinople was Europe's largest and wealthiest city.-Names:...

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Where three dates are given, the middle date is the date of accession. If an emperor reigned for more than one sitting, his lifetime dates are given followed by the dates of his reigns. Dynasty names are given in capitals so that they can be picked out from the interweaving trees.

Leonid dynasty

House of Leo

The House of Leo ruled the Eastern Roman Empire from 457 to 518 .The emperors of the House of Leo were:# Leo I the Thracian – soldier...

, 457–518

Justinian dynasty

Justinian Dynasty

The Justinian Dynasty is a family who ruled over the Byzantine Empire from 518 to 602. It originated with Justin I and ended with Maurice. Patriarch Germanus I of Constantinople , whose father was named Justinian, might have been a descendant of the dynasty...

, 518–610

Heraclian dynasty, 610–717

Isaurian, Amorian and Macedonian

Macedonian dynasty

The Macedonian dynasty ruled the Byzantine Empire from 867 to 1056, following the Amorian dynasty. During this period, the Byzantine state reached its greatest expanse since the Muslim conquests, and the Macedonian Renaissance in letters and arts began. The dynasty was named after its founder,...

 dynasties, 717–1057

Doukid dynasty, 1059–1081

Komnenid, Angelid

Angelos

The Angelos family , feminine form Angelina , plural Angeloi , was a noble Byzantine lineage which gave rise to three Byzantine emperors from 1185 to 1204...

, Laskarid

Laskaris

The Laskaris or Lascaris family was a Byzantine Greek noble family whose members formed the ruling dynasty of the Empire of Nicaea from 1204 to 1261 and remained among the senior nobility up to the dissolution of the Byzantine Empire, whereupon many emigrated to Italy and then to Smyrna...

 and Palaiologid

Palaiologos

Palaiologos , often latinized as Palaeologus, was a Byzantine Greek noble family, which produced the last ruling dynasty of the Byzantine Empire. After the Fourth Crusade, members of the family fled to the neighboring Empire of Nicaea, where Michael VIII Palaiologos became co-emperor in 1259,...

 dynasties, 1057–59, 1081–1453