Il etait Suisse.
Quelle est ta leçon préférée? means - what (or which) is your favourite lesson?
de quelle couleur est-ce / est-il / est-elle ? -
"Il est quelle heure" means "What time is it?" in French.
"est de quelle nationalité ?" is a question asking about citizenship. You can typically find that on legal or administrative forms (state your country of nationality)
"il est [heure]" (it is [time])
Sorry. He died in 1354 PAS 1534
quelle heure est-il ? However nowadays we prefer to say 'have you got the time?' in French too rather than quelle heure est-il: Vous avez l'heure? Tu as l'heure? are more commun.
Quelle est ton nationalite means 'What is your nationality'
"quelle couleur est-ce ?"de quelle couleur est cet objet ? : what colour is that object?
Il est quelle huere? (What time is it)
What is the date? is the translation for Quelle est la date.
'mais quelle est cette ...' means but what is this (thing) / who is this (person).
Quelle est ta leçon préférée? means - what (or which) is your favourite lesson?
de quelle couleur est-ce / est-il / est-elle ? -
"Il est quelle heure" means "What time is it?" in French.
What is the temperature.
"quelle est la taille de votre maison ?" or "de quelle taille est votre maison ?"