in the bootstrap process Craft has no idea about the current site or language at the time workarounds: use environment vars, seperate index.php entry points, or arrays keyed by site handle
Francisco de Paula Juan Nepomuceno María de los Remedios Cipriano de laSantísima Trinidad Ruiz y Picasso validation and sorting can be challenging https://www.w3.org/International/questions/qa-personal-names
is not just words; see culture, colors, images… who are the translators, what is the workflow once you have this, use the tips given to map it onto a Craft site