"Wert one of" is an archaic phrase that translates to "were one of" in modern English. It is often used to describe someone or something that was considered to be one of a group or set. Synonyms for this phrase include words like "were among," "belonged to," "made up," or "constituted part of." These phrases better convey the idea of being part of a larger whole, rather than simply being one among many. Using more modern language can help make your writing more accessible to readers, while still conveying the same meaning as the archaic phrase.