What is my stepdad's father to me?
Your stepdad's father is your step-grandfather — in the word's looser sense, since strictly a step-grandfather is a grandparent's later husband. English has no official term for a step-parent's parents, so families borrow the nearest label or simply use his name. No blood, and no formal title, connects you.
Relationship
Step-grandfather
English has no single formal word for this relative — “step-grandfather” is the label genealogists use.
- You
- Your stepdad
- His father
From the other side, you are their step-grandchild.
Step relationships run through a remarriage, not a shared ancestor, so the ancestor chart can't draw them.
The calculator below works out blood relationships through a shared ancestor — use it to explore the rest of your tree.
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This relationship sits outside the shared-ancestor model, so the card above carries the answer and the calculator opens in its default state. Work out any blood relationship with it, or open the full relationship calculator.
FAQs
What would my stepdad's father be to me?+
Informally your step-grandfather; officially, nothing — English never named a step-parent's parents.
Who am I to my stepdad's father?+
Informally their step-grandchild — the same loose sense, read the other way.
Does the calculator store my family details?+
No — it runs entirely in your browser. Nothing you enter is uploaded or saved on our servers.
Start with one relative and see what comes back.
Add what you remember and AncestorIQ searches for the rest. Free to build your tree for as long as you like.
No credit card needed. Your tree stays yours.
