Improve the cohesiveness of the given paragraph.
In practice, when no male heir is mature enough, a female heir is usually determined "pragmatically", by proximity to the last monarch, like Boariks of the Caucasian Huns or Tamiris of Massagetes in Middle Asia.
In practice, when no male heir is mature enough, a female heir is usually determined "pragmatically", by proximity to the last monarch, like Boariks of the Caucasian Huns or Tamiris of Massagetes in Middle Asia were selected.