lˈiːvɪŋ hɪz bɹˈʌðɚ bˈælθɐsˌɑːɹ sˈeɪvlbɜːɡ, hˌuː wʌz ɪn tʃˈɑːɹdʒ əvə ɡlˈæsmeɪkɪŋ ʃˈɑːp ɪn bɹˈʌsəlz, hiː ɹᵻtˈɜːnd tə hˈɪɹlən bɪkˈʌz hiː kʊd nˌɑːt ɐdʒˈʌst.
Leaving his brother Balthasar Savelberg, who was in charge of a glassmaking shop in Brussels, he returned to Heerlen because he could not adjust.