During my childhood, I watched a German show called "Wickie und die starken Männer" (or "Vicky the Viking"). One of the character's names is Ylva, who is the mother of Vicky.
No, Ylva is certainly not pronounced like "YOOL-va". The German Ü and the French U are not pronounced like "OO". Günther is not "gonter" in German, and the French Julie is not pronounced like the English Julie.
One of the character's names is Ylva, who is the mother of Vicky.