In or before 1165 [his father] Godfrey Reginar VIII Duke Lower Lorraine (age 23) and [his mother] Margaret Luxemburg Duchess Lower Lorraine (age 26) were married. She by marriage Duchess Lower Lorraine. She the daughter of Henry Luxemburg II Duke Limburg (age 53) and Mathilda Saffenburg Duchess Limburg. He the son of Godfrey Reginar VII Duke Lower Lorraine and Lutgardis Sulzbach Duchess Lower Lorraine.

In or after 1173 [his father] Godfrey Reginar VIII Duke Lower Lorraine (age 31) and [his step-mother] Imagina Loon Duchess Lower Lorraine (age 28) were married. She by marriage Duchess Lower Lorraine. She the daughter of Louis Loon I Count Loon (age 65) and Agnes Metz Countess Loon (age 59). He the son of Godfrey Reginar VII Duke Lower Lorraine and Lutgardis Sulzbach Duchess Lower Lorraine.

Before 1190 Henry Reginar VIII Duke Lower Lorraine I Duke Brabant (age 25) and Maud Metz (age 19) were married. She the daughter of Matthew Metz Count Boulogne and Marie Blois I Countess Boulogne. He the son of Godfrey Reginar VIII Duke Lower Lorraine (age 47) and Margaret Luxemburg Duchess Lower Lorraine. She a great x 2 granddaughter of King William "Conqueror" I of England.

In 1206 [his son-in-law] Arnold III Count Loon and [his daughter] Adelaide Reginar (age 16) were married. She the daughter of Henry Reginar VIII Duke Lower Lorraine I Duke Brabant (age 41) and Maud Metz (age 36). She a great x 3 granddaughter of King William "Conqueror" I of England.

In Jan 1206 [his son-in-law] Gerard III Count Guelders (age 21) and [his daughter] Margaret Reginar Countess Guelders (age 14) were married. She the daughter of Henry Reginar VIII Duke Lower Lorraine I Duke Brabant (age 41) and Maud Metz (age 36). He the son of Otto I Count Guelders (age 56) and Richardis Wittelsbach Countess Guelders (age 33). She a great x 3 granddaughter of King William "Conqueror" I of England.

In 1212 [his son-in-law] Henry Welf VI Count Palatine of the Rhine (age 15) and [his daughter] Mathilde Reginar Countess Holland and Palatine (age 12) were married. She by marriage Countess Palatine of the Rhine. She the daughter of Henry Reginar VIII Duke Lower Lorraine I Duke Brabant (age 47) and Maud Metz. They were third cousin once removed. He a great grandson of King Henry "Curtmantle" II of England. She a great x 3 granddaughter of King William "Conqueror" I of England.

On 06 Dec 1214 [his son-in-law] Floris Gerulfing IV Count Holland (age 4) and [his daughter] Mathilde Reginar Countess Holland and Palatine (age 14) were married. She by marriage Countess Holland. She the daughter of Henry Reginar VIII Duke Lower Lorraine I Duke Brabant (age 49) and Maud Metz. He the son of William Gerulfing I Count Holland (age 47) and Adelaide Guelders Countess Holland. They were half third cousin once removed. She a great x 3 granddaughter of King William "Conqueror" I of England.

In 1220 [his son-in-law] William Gerulfing I Count Holland (age 53) and [his daughter] Marie Reginar Countess Holland (age 30) were married. She by marriage Countess Holland. The difference in their ages was 23 years. She the daughter of Henry Reginar VIII Duke Lower Lorraine I Duke Brabant (age 55) and Maud Metz. He the son of Floris Gerulfing III Count Holland and Ada Dunkeld Countess Holland. They were half third cousins. She a great x 3 granddaughter of King William "Conqueror" I of England.

After 1221 [his son-in-law] William Auvergne X Count Auvergne (age 29) and [his daughter] Adelaide Reginar (age 31) were married. She the daughter of Henry Reginar VIII Duke Lower Lorraine I Duke Brabant (age 56) and Maud Metz. She a great x 3 granddaughter of King William "Conqueror" I of England.

In or before 1224 [his son] Henry Reginar II Duke Brabant (age 17) and [his daughter-in-law] Marie Swabia Duchess Brabant were married. He the son of Henry Reginar VIII Duke Lower Lorraine I Duke Brabant (age 58) and Maud Metz. He a great x 3 grandson of King William "Conqueror" I of England.

[his son] Godfrey Reginar and Marie van Oudenaarde were married. He the son of Henry Reginar VIII Duke Lower Lorraine I Duke Brabant and Maud Metz. He a great x 3 grandson of King William "Conqueror" I of England.