Ermengarde of Tours

{{Short description|Carolingian empress from 821 to 851}}

{{Expand French|topic=bio|Ermengarde de Tours|date=July 2012}}

{{Use dmy dates|date=September 2022}}

{{Infobox royalty

| name = Ermengarde of Tours

| succession = Empress of the Carolingian Empire

| reign = October 821 – 20 Mar 851

| birth_date = {{circa}} 810

| death_date = 20 March 851 (aged 40- 41)

| death_place = Erstein, France

| consort = yes

| spouse = Lothair I

| issue = Louis II of Italy
Helletrud
Bertha
Ermengarde
Gisla
Lothair II
Rotrud
Charles of Provence

| house = Etichonids

| father = Hugh of Tours

| mother = Ava of Morvois

| succession1 = Queen consort of Italy

| reign1 = October 821 – 20 Mar 851

| succession2 = Queen consort of Middle Francia

| reign2 = August 843 – 20 Mar 851

}}

Ermengarde of Tours ({{circa}} 810 – 20 Mar 851) was a Carolinian Empress consort and queen of Italy. She was daughter of Hugh of Tours{{sfn|Riche|1993|p=149}} and Ava of Morvois.

In October 821 in Thionville, Ermengarde married the Carolingian Emperor Lothair I of the Franks (795–855).{{sfn|Riche|1993|p=149}}

Ermengarde used her bridal gift to found the abbey Erstein in the Elsass,{{sfn|Heidecker|2010|p=117}} in which she is buried. Ermengarde died in 851.{{sfn|Heidecker|2010|p=194}}

Lothair and Ermengarde had:

• Louis II of Italy{{sfn|Riche|1993|p=149}}
• Helletrud (Hiltrud) (c. 826–after 865/866){{sfn|Bouchard|2001|p=102}} m. Count Berengar (d. before 865/866)
• Bertha (c. 830–after 7 May 852, probably 877),{{sfn|Bouchard|2001|p=102}} became before 847 Abbess of Avenay, perhaps Äbtissin of Faremoutiers
• A daughter of unknown name (b. probably 826/830), called Ermengarde in later sources, kidnapped 846 by Gilbert, Count of the Maasgau, who then married her
• Gisla (c. 830–860){{sfn|Bouchard|2001|p=102}} 851–860 Abbess of San Salvatore in Brescia
• Lothair II{{sfn|Riche|1993|p=149}}
• Rotrud (baptized 835/840 in Pavia){{sfn|Bouchard|2001|p=102}} m. around 850/851 Lambert, Margrave of Brittany, Count of Nantes (Widonen), who died 1 May 852
• Charles of Provence{{sfn|Heidecker|2010|p=194}}