Is there a way to be the 'creator' of an iron golem when you summon it with a command?

Let's look at the Minecraft Wiki, specifically, the Iron Golem's Data Values: These are the NBT tags being held by the Iron Golem. It looks like the Iron Golem has its own tag that shows whether it was created by a player.

When creating an Iron Golem manually, this tag is set to 1 (true). But the /summon command does no such thing by default.

But there is a way! Although /summon does not set NBT tags by default, you can tell it to by specifying the tags after the summon position.

Try this command:

/summon minecraft:iron_golem ~ ~ ~ {PlayerCreated:1b}

This command summons an Iron Golem with the PlayerCreated tag set to 1b.

Learn more about these concepts on the Minecraft Wiki:

• Iron Golem
• NBT Format
• The /summon Command