Baldwin IV. von Flandern was son of Arnulf II. von Flandern and Rosala von Ivrea, daughter of Berengar II. von Italien.

Baldwin IV. von Flandern was married to Otgiva von Luxemburg, daughter of Friedrich I. von Luxemburg, son of Sigfried von Moselgau.

Baldwin IV. von Flandern was succeeded by:

Baldwin V. von Flandern
Baldwin VI. von Flandern
Baldwin II. von Hennegau
Baldwin III. von Hennegau

Baldwin IV. von Hennegau married to Adelheid von Namur, daughter of Gotfried von Namur and Ermesinde von Luxemburg.

Ermesinde von Luxemburg was daughter of Konrad I. von Luxemburg, son of Giselbert von Luxemburg.

Giselbert von Luxemburg was son of Friedrich I. von Luxemburg.

Baldwin IV. von Hennegau was succeeded by:

Baldwin V. von Hennegau

Baldwin VI./IX. von Konstantinopel married to Maria von Champagne. Their daughter:

Johanna von Hennegau Flandern was married to Thomas II. von Savoy, son of Thomas I. von Savoy and Margareth von Genf. Daughter of Thomas I. von Savoy was:

Beatrix von Savoy married to Raymund V. Berengar von Provence. His daughters were:

Margareth von Provence married to Ludwig IX. von Frankreich

Beatrix von Provence married to Karl I. von Anjou. His son was Karl II. von Anjou.

Eleonora von Provence, third daughter of Raymund Berangar married to Heinrich III. von England.

***
Baldwin IV. von Flandern married his daughter Judith von Flandern to Welf IV. von Bayern, who was followed by:

Heinreich den Schwarzen von Bayern married to Wulfhilde von Sachsen. Their daughter:

Mathilda von Bayern married Geberhard von Sulzbach. Their daughter:

Adelheid von Sulzbach became wife of Bolislav I. von Niederschlesien, followed by:

Heinrich I. von Niederschlesien, who was married to Hedwig von Andechs-Meran, daughter of Otto I. von Andechs Meran.

Heinrich I. von Niederschlesien was followed by:

Heinrich II. von Niederschlesien
Konrad I. von Niederschlesien
Heinrich II. von Niederschlesien

Salome von Niederschlesien married to Heinrich II. Reuss von Plauen. He was followed by:

Heinrich III. Reuss
Heinrich VII. Reuss
Heinrich IX. Reuss
Heinrich XIII. Reuss
Heinrich XV. Reuss
Heinrich V. Reuss

Heinrich IV. Reuss married to Elisabeth Juliane zu Salm Neufville, daughter of Wild und Rheingraf Friedrich zu Salm Neufville.

Heinrich IV. Reuss was followed by:

Heinrich I. Reuss
Heinrich VI. Reuss
Heinrich II. Reuss
Heinrich XI. Reuss

Isabella Reuss married to Wilhelm Georg von Kirchberg, son of Wilhelm Ludwig von Kirchberg and Luisa von Daun, daughter of Karl Ludwig von Daun.

Georg von Kirchberg's daughter, Luisa Isabella von Kirchberg married Friedrich Wilhelm von Nassau Weilburg. His son was:

Georg Wilhelm August Heinrich Belgicus von Nassau married to Pauline von Wuertemberg. His daughter:

Maria Wilhelmina von Nassau married Wilhelm Hermann Karl zu Wied, son of Johann August Karl zu Wied and Sophia Augusta zu Solms und Braunfels, daughter of Wilhelm Christian Karl zu Solms und Braunfels.

Wilhelm Christian Karl zu Solms Braunfels was son of Friedrich Wilhelm Ernst zu Solms Braunfels.

His father Friedrich Wilhelm zu Solms Braunfels was son of Wilhelm Moritz zu Solms Braunfels and Magdalena Sophia von Hessen Homburg.

Magdalena Sophia von Hessen Homburg was daughter of Wilhelm Christoph von Hessen Homburg, son of Ferdinand I. von Hessen Homburg married to Magdalena Elisabeth von Leiningen Westerburg, daughter of Christoph von Leiningen Westerburg.

Christoph von Leiningen Westernburg was married to Anna Maria Ungnad von Weissenwolf, daughter of Simon Ungnad von Weissenwolf.

Simon Ungnad von Weissenwolf was son of Hans Ungnad von Sannegg married to Anna von Thurn und Frankopan, daughter of Johann Christoph Frankopan.