One field?

Like people have only one name... I like the Human Name from the FHIR standard: https://hl7.org/fhir/datatypes.html#HumanName

People can have many names (depending on usage and of "when", think about marriage) and even if each of those human names can handle multiple parts the "text" field is what you should use to represent the name in UIs.

I encourage people to go check the examples the standards gives, especially the Japanese and Scandinavian ones.