I Chronicles 4:26 Kabbalah

וּבְנֵ֖י מִשְׁמָ֑ע חַמּוּאֵ֥ל בְּנ֛וֹ זַכּ֥וּר בְּנ֖וֹ שִׁמְעִ֥י בְנֽוֹ׃

And the sons of Mishma: Hammuel his son, Zaccur his son, Shimei his son.

Read kabbalistic (mystical) interpretation of I Chronicles 4:26: and classical mystical sources.