_Gleb Rostislavich RURIK _+
                                                           | (1240 - 1278)            
                              _Aleksander Glebovich RURIK _|
                             | (1258 - 1313)               |
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 _Ivan Aleksandrovich RURIK _|
| (1290 - 1359)              |
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|--Svyatoslav Ivanovich RURIK 
|  (1325 - 1386)
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