Checking baggage across 2 carriers on a mutli sector flight - possible?

[bluebagger]

Hi,

first time question, long time lurker...

I'm planning on flying from LHR to FRA on a LH flight arriving at 11am to connect to my QR 3pm flight back to Asia that I have already purchased. Is it possible at LHR check-in for them to tag my golf clubs onto the LH and the QR flight or will I need to go landside at FRA on arrival and then re-check it as they are not both OW carriers and/or the tickets are on separate PNRs?

There is a more expensive BA flight earlier in the morning that would arrive in FRA around 9am and I presume would let me check-in the clubs right through onto QR and therefore I could enjoy 3-4 hours landside and enjoy some fine July beer garden bratwurst in Frankfurt

If so I would need to show them the existing QR PNR on check-in or would they see that on the system?

Any suggestions?

Thanks BB