View source for AD 787

{{Use mdy dates|date=February 2011}}
{{redirect|787 (year)|the year of the pre-Julian Roman calendar|787 BC}}
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{{M1 year in topic}}
[[File:Seventh ecumenical council (Icon).jpg|upright=1.35|thumb|The [[Second Council of Nicaea]] (787)]]
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Year '''787''' ('''[[Roman numerals|DCCLXXXVII]]''') was a [[common year starting on Monday]] of the [[Julian calendar]]. The denomination 787 for this year has been used since the early medieval period, when the [[Anno Domini]] [[calendar era]] became the prevalent method in Europe for naming years.

== Events ==
<onlyinclude>

=== By place ===

==== Byzantine Empire ====
* Empress [[Irene of Athens|Irene]] sends a [[Byzantine Empire|Byzantine]] expeditionary army to invade southern [[Italy]], but it is defeated and driven out (at [[Pope Adrian I]]'s urging) by the [[Francia|Frankish]] army, allied with the forces of [[Duchy of Benevento|Benevento]]. She breaks off the engagement (see [[782]]) between her son [[Constantine VI]] and the Frankish princess [[Rotrude]], daughter of King [[Charlemagne]].

==== Europe ====
* [[August 26]] &ndash; [[Arechis II of Benevento|Arechis II]], autonomous prince (or [[duke]]) of Benevento, dies. [[Grimoald III of Benevento|Grimoald III]], taken hostage by the Franks, succeeds his father as ruler of Benevento.
* [[Maurizio Galbaio]], doge of [[Republic of Venice|Venice]], dies after a 22-year reign and is succeeded by his son [[Giovanni Galbaio|Giovanni]]. He begins a [[Feud|vendetta]] against the [[patriarch of Grado]] ([[Italy]]).

==== Britain ====

* Kings [[Offa of Mercia]] and [[Beorhtric of Wessex]] call the [[Synod of Chelsea]] in [[Kingdom of Kent|Kent]], which is attended by the [[Papal legate]]s. There, Offa persuades the [[Pope|Papacy]] to grant [[Archbishop|Archepiscopal]] status to the Mercian [[Bishop of Lichfield|See of Lichfield]]. In order to secure the royal succession, he has [[Hygeberht]] crown his son [[Ecgfrith of Mercia|Ecgfrith]] king of [[Mercia]] at [[Brixworth]].

=== By topic ===

==== Religion ====
* [[Second Council of Nicaea]]: Empress Irene restores the [[veneration]] of [[icon]]s (images of [[Christ]] and [[saint]]s). This is a major victory of the [[monk]]s, who will advance extensive claims to complete freedom for the [[Eastern Orthodox Church]] in [[Religion|religious]] matters. This ends the [[Iconoclasm|iconoclastic]] period in the [[Byzantine Empire]].
</onlyinclude>

== Births ==
* [[Abu Ma'shar al-Balkhi]], Muslim scholar and [[Astrology in medieval Islam|astrologer]]<ref name="WDL">{{cite web |url = http://www.wdl.org/en/item/2998/ |title = Introduction to Astronomy, Containing the Eight Divided Books of Abu Ma'shar Abalachus |website = [[World Digital Library]] |date = 1506 |access-date = 2013-07-15 }}</ref> (approximate date)
* [[Li Deyu]], [[Chancellor of the Tang dynasty|chancellor of the Tang Dynasty]] (d. [[850]]) 
* [[Al-Amin|Muhammad ibn Harun al-Amin]], Muslim [[caliph]] (d. [[813]])

== Deaths ==
* [[August 26]] &ndash; [[Arechis II of Benevento|Arechis II]], duke of [[Duchy of Benevento|Benevento]]
* [[December 13]] &ndash; [[Agilfride]], bishop of [[List of bishops and prince-bishops of Liège|Liège]]
* [[Hyecho]], Korean [[Bhikkhu|Buddhist monk]] (b. [[704]])
* [[Maurizio Galbaio]], doge of [[Republic of Venice|Venice]]
* [[Willibald]], bishop of [[Roman Catholic Diocese of Eichstätt|Eichstätt]] (approximate date)

== References ==
{{Reflist}}

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[[Category:787| ]]