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In page Albert the Bear:

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Albert was married in 1124 to Sophie of Winzenburg (died 25 March 1160) and they had the following children:

  1. Unknown daughter,[c] married before 1146 Otto the Younger, son of Otto of Salm[10]
  2. Sybille (died c. 1170), Abbess of Quedlinburg[citation needed]