I was thinking of those composite names too, like Juan Miguel Archangel (John Michael Archangel) but the person having such a name would just choose at most two and would introduce themselves as John, or Michael, or Miguel.
Unless it rolls well out of the tongue like José Luís, almost all people with composite names go by one of the components or a specific short for that composite name.
For example: José María get shortened to Chema, or María Teresa turns into Maite.
I was thinking of those composite names too, like Juan Miguel Archangel (John Michael Archangel) but the person having such a name would just choose at most two and would introduce themselves as John, or Michael, or Miguel.
Unless it rolls well out of the tongue like José Luís, almost all people with composite names go by one of the components or a specific short for that composite name.
For example: José María get shortened to Chema, or María Teresa turns into Maite.