Daniel 5:31
And Darius the Median took the kingdom, being about three score and two years old.
Nave's Topical Index—AKJV

Daniel 6:1
It pleased Darius to set over the kingdom an hundred and twenty princes, which should be over the whole kingdom;
Nave's Topical Index—AKJV

Daniel 9:1
In the first year of Darius the son of Ahasuerus, of the seed of the Medes, which was made king over the realm of the Chaldeans;
Nave's Topical Index—AKJV