The bedroom must be very large to inconspicuously position a freestanding tub.
Would it be possible to plan the WC outside the bathroom and instead build a new room somewhere? This could be possible without adjustments to the load-bearing walls.
We also dare to integrate the bathtub into the bedroom. However, we have the option to separate the bathtub area from the sleeping area with sliding doors. Whether it's a fail, I can't say yet. But we also have a children's bathroom with a shower.
Since there is so much feedback, I quickly made a sketch of the planned parent wing. Please do not take the measurements too literally, some are rounded or measured on site and due to slanted walls/plaster not always matching each other. Just so you can imagine it. The bed is supposed to stand on the left, the bathroom on the right, and built-in wardrobes under the slope at the bottom of the plan. Doors and walls cannot be changed, balcony doors can be made narrower if necessary.