Year 1102 (MCII) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar.

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Asia

The Crusaders capture Caesarea Maritima.
The Crusaders defeat a large Fatimid counter-attack of the Kingdom of Jerusalem near Ascalon and capture the city after 3 years of siedge.[1]
Dagobert of Pisa is briefly deposed as Latin Patriarch of Jerusalem (and restored later in the year).
Raymond IV of Toulouse begins to besiege Tripoli, and takes the nominal title of Count of Tripoli.
Raymond IV of Toulouse is imprisoned by Tancred, regent of the Principality of Antioch.
The Venetians establish a new trade emporium in Sidon.[2]
Europe

May 5 – End of the short-lived principality created by El Cid. Valencia is captured by the Almoravids under Yusuf ibn Tashfin. It is later recaptured, evacuated and burned by Alfonso VI of Castile.[3]
June 4 ndash; Bolesław III becomes king of Poland.
Following the Croatian military defeat of 1096, by the Pacta Conventa (contested) the Croatian nobles recognize Coloman of Hungary as their overlord, initiating the personal union between the two kingdoms.
Henry I of England takes possession of Arundel Castle.
The Hohenbaden castle is built in Baden-Baden, Germany.
At the Council of London, the Roman Catholic Church bans sodomy and the sale of Christian slaves to non-Christian countries.
By topic

Religion

Henry I of England orders the tomb of Edward the Confessor opened; the body is supposedly found undecayed.


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HideBirths

February 7 – Matilda, daughter of Henry I of England (d. 1167)
October 25 – William Clito, Count of Flanders (d. 1128)
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HideDeaths

May 19 – Stephen, Count of Blois
Anna Dalassena, Byzantine regent (b. 1025)
King Wladislaus I Herman of Poland (b. 1040)
Albert, antipope in Rome.