{{Short description|Margrave of Meissen from 1067 to 1068}} {{More footnotes needed|date=October 2017}} {{Use dmy dates|date=December 2023}} {{infobox noble | name = Egbert I | title = Margrave of Meissen | image = | caption = | noble family = Brunonen | father = Liudolf, Margrave of Frisia | mother = Gertrude of Egisheim-Dagsburg | spouse = Immilla of Turin | issue = Egbert II<br>Gertrude | birth_date = | birth_place = | death_date = {{death date|1068|1|11|df=y}} | death_place = }}

'''Egbert I''' ({{langx|de|Ekbert}}) (died 11 January 1068) was the Margrave of Meissen from 1067 until his early death the next year. Egbert was the Count of Brunswick from about 1038, when his father, Liudolf, Margrave of Frisia, died.

Egbert was the scion of the influential Eastphalian family of the Brunonen. He inherited the familial lands in Brunswick and from about 1051 he shared the chief authority in the region with the Bishop of Hildesheim. Egbert also extended his authority and estates into Frisia under the suzerainty of the Archbishop of Hamburg-Bremen.

Although closely related to the Salian dynasty, Egbert participated in the coup d'état of Kaiserswerth in 1062, whereat a group of nobles acting under Anno II, Archbishop of Cologne, tried to seize authority in the kingdom from King Henry IV and his regent mother, the Empress Agnes.

In 1058, Egbert married Immilla, the daughter of Ulric Manfred II of Turin, and widow of Otto of Schweinfurt. Egbert tried to repudiate Immilla shortly before his death in 1068.<ref>{{Cite journal|last=Creber|first=Alison|date=2019-04-22|title=Breaking Up Is Hard To Do: Dissolving Royal and Noble Marriages in Eleventh-Century Germany|journal=German History|language=en|volume=37|issue=2|pages=149–171|doi=10.1093/gerhis/ghy108|issn=0266-3554|url=https://kclpure.kcl.ac.uk/ws/files/99029335/Breaking_Up_Is_Hard_CREBER_Accepted28June2018_GREEN_AAM.pdf}}</ref> His only son, Egbert II, succeeded him in Meissen. His daughter Gertrude later brought Meissen to her husband, Henry von Eilenburg.

==References== {{Reflist}}

==Sources== * {{cite web|last1=Flathe|title=Ekbert I.|url=https://www.deutsche-biographie.de/ppn137524706.html#adbcontent|website=Deutsche Biographie|publisher=Allgemeine Deutsche Biographie 5|accessdate=26 October 2017}}

{{S-start}} {{S-hou|Brunonen|||11 January|1068}} {{succession box | before= Otto I | title=Margrave of Meissen | years=1067&ndash;1068 | after=Egbert II }} {{S-end}}

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{{DEFAULTSORT:Egbert 01 Meissen}} Category:1068 deaths Egbert 01 Category:Counts of Frisia Category:Brunonids Category:Counts of Brunswick Category:Year of birth unknown