u/FartBreath92

Can't declare war on fellow vassals despite liege low authority

As stated in the title, I can't see to declare war on another vassal as the subject of the Holy Roman Empire.

I've secured War Declaration rights from the emperor, his authority is the lowest it can possibly be and I've even got a strong hook, and I have the casus belli yet the button to declare war is still greyed out.

I'm at a loss. I can declare an independence war or dissolution war, but I still want to be a vassal. I started as an adventurer, but I'm playing as his son now who was born after the adventurer became a duke.

Any ideas?

For reference:

https://preview.redd.it/s8n4b1jomj0h1.jpg?width=2560&format=pjpg&auto=webp&s=84369de8c1bedc660a76b7d3840cb03d099b16f2

https://preview.redd.it/s8qd92jomj0h1.jpg?width=2560&format=pjpg&auto=webp&s=35818749574c0a02aa1adba5319a352227e1df5d

https://preview.redd.it/zxkyp1jomj0h1.jpg?width=2560&format=pjpg&auto=webp&s=4f7e295801cd24d491714261e397febd1b0f703a

https://preview.redd.it/ua1gz0jomj0h1.jpg?width=2560&format=pjpg&auto=webp&s=e2bb0c37ffb6e2569334ea22f70b23c645f2cea6

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u/FartBreath92 — 12 days ago