<Li> Robert L. May's original book does not name Rudolph's parents . </Li> <Li> The animated specials produced by both Rankin / Bass and GoodTimes Entertainment have given Rudolph different sets of parents: <Ul> <Li> In Rankin / Bass's holiday special, he is Donder's son, and his mother is a tan doe who is called Mrs. Donder . </Li> <Li> In GoodTimes' retelling, Rudolph's father is Blitzen, and his mother is named Mitzi . </Li> </Ul> </Li> <Ul> <Li> In Rankin / Bass's holiday special, he is Donder's son, and his mother is a tan doe who is called Mrs. Donder . </Li> <Li> In GoodTimes' retelling, Rudolph's father is Blitzen, and his mother is named Mitzi . </Li> </Ul> <Li> In Rankin / Bass's holiday special, he is Donder's son, and his mother is a tan doe who is called Mrs. Donder . </Li>

Who is rudolph the red-nosed reindeer's dad
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