William III Clito of Flanders Count of Flanders [18256] ²⁴

   Cause of his death was Killed at the Battle of Alost.

   Another name for William was William of Normandy 9º D. Normandy.

  General Notes:

http://www.hull.ac.uk/php/cssbct/cgi-bin/gedlkup.php/n=royal?royal01853

Was protected by Philip le Gros, King of France, and received from that Monarch the hand of Joan, Sister of his Queen Alice, and daughter of Humbert Count of Maurienne. This youthful prince, distinquished for his courage and gallantry, was slain in Battle. Burke. (note spouses differ)
Sources differ as to whom his second wife was. I have shown both.

Duke of Normandy, Count of Flandres 1127. No children.
William of Normandy (9º D. Normandy)

http://www.tudorplace.com.ar/PLANTAGENET.htm#William%20of%20Normandy%20(9º%20D.%20Normandy)

  Noted events in his life were:

• Acceded, Jan 1127.

William married Sybil of Anjou [7540] [MRIN: 8704], daughter of Fulk V The Younger of Anjou Count of Anjou [3842] and Ermengard of Maine [2568] [9CDY-NC9], in 1123. (Sybil of Anjou [7540] was born about 1114, died in 1165 in Abbey of St Lazarus, Bethlethem and was buried in Abbey of St Lazarus, Bethlethem.)

William next married Joan [18257] [MRIN: 8705], daughter of Reiner of Montferrat Marquis of Montferrat [18258] and Gisele of Burgundy [4567]. (Joan [18257] died in 1127.)

William next married Joan of Maurienne [18261] [MRIN: 8708], daughter of Humbert of Maurienne Count of Maurienne [18262] and Unknown.