Where does “Tacjan” come from?

Tacjan (Polish) comes from Latin Tatianus, from Latin Tatius — Titus Tatius, mythological king of the Sabini, later on the joint ruler with Romulus in young Rome.

Ancestry of “Tacjan”, step by step

Step	Language	Word	Meaning
1	Latin	Tatianus	—
2	Latin	Tatius	Titus Tatius, mythological king of the Sabini, later on the joint ruler with Romulus in young Rome

Every word from Latin Tatius →Every word from Latin Tatianus →