"Hadst a claim" can be replaced with several synonyms depending on the context. For instance, the phrase could be substituted with "had an entitlement," "had a right," "had a demand," or "had a case." If someone is arguing or making a strong assertion about their property or ideas, "hadst a claim" could be replaced with "had a stake," "had ownership," or "had a grip." Additionally, "hadst a claim" could be more casually stated as "had put forth a claim," "had stated a claim," or "had made a claim." Overall, there are several interchangeable words or phrases for "hadst a claim" depending on the tone, context, or degree of intensity.