I have six or seven 'what to name the baby' books, the Oxford dictionary of names, and a fabulous tome that's 26 languages in simultaneous translation - French, German, all the European majors, plus Esperanto, Arabic, Hebrew, Chinese, Japanese, and so on.
I was born into a Turkish family that had acquired Italian citizenship. Many members of the family subsequently became British, French, Brazilian, and German, so there was a bit of everything. It was not uncommon for people in the family to speak seven languages: English, French, Ladino, Italian, Turkish, Arabic, and even Greek.