Gertrude of Alsace

F, ( - 23 May 1144)
Father-Biological*Dietrich II of Alsace ~ Duke of Upper Lorraine b. 1060, d. 23 Jan 1115
Mother-Biological*Gertrude of Flanders1 b. c 1070, d. bt 1115 - 1126
Family Lines
Boudreau Line
Last Edited=9 Feb 2024
     Gertrude of Alsace was the daughter of Dietrich II of Alsace ~ Duke of Upper Lorraine and Gertrude of Flanders.1 Gertrude of Alsace was also known as Petronel of Alsace.1

Gertrude of Alsace married Florenz II the Fat ~ Count of Holland, son of Dietrich V , Count of West Friesland and Ulfhilde, circa 1113.1 Gertrude of Alsace died on 23 May 1144.1

Child of Gertrude of Alsace and Florenz II the Fat ~ Count of Holland


  1. Stuart, Roderick W. Royalty for Commoners, The Complete Known Lineage of John of Gaunt, Son of Edward III, King of England, and Queen Philippa, Fourth Edition. Baltimore, Maryland: Genealogical Publishing Company, 2002.