He got the life term for the most serious count and was getting additional time for the hundreds of other counts.
A plea deal struck last week spared him from a possible death sentence for beating and starving a pregnant victim until she miscarried.
The women disappeared separately between 2002 and 2004, when they were 14, 16 and 20 years old.
They escaped to freedom May 6 when one of them, Amanda Berry, broke out part of the door to Castro's house and yelled to neighbors for help.
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