ʃˈoʊɪŋ ɐ kˈiːn ˈɪntɹɛst ɪn dɹˈɔːɪŋ, hiː wʌz fˈɜːst ɐpɹˈɛntɪst wɪð dʒˈæn mˈændeɪən, wˌɛɹ hiː stˈeɪd fɔːɹ ˈeɪtiːn mˈʌnθs.
Showing a keen interest in drawing, he was first apprenticed with Jan Mandijn, where he stayed for 18 months.