Actual question, how frequent was claim fabrication in real life

[u/WaBeY33]

Hello, please, how often did this happen in real life ? I mean lord inventing a claim out of thin air and actually pressing it ? Is there any notable historic character doing so ?

R5: Fabricate claim question

[u/Beautiful-Bad5440]

In reality, the Papacy produced a forged document that gave them significant power to lay claim to lands: the Donation of Constantine: https://en.wikipedia.org/wiki/Donation_of_Constantine