Tirohia te wāhanga i raro nei, kātahi ka whakautu i te pātai i muri mai i te reo kotahi me te wāhanga:  I te Poutu-te-rangi 1887 i marenatia a Planck ki a Marie Merck (1861<unk>1909), tuahine o tetahi hoa kura, ka neke tahi me ia ki tetahi whare noho i Kiel. E whā a rāua tamariki: Karl (1888<unk>1916), ngā mahanga Emma (1889<unk>1919) me Grete (1889<unk>1917), me Erwin (1893<unk>1945).  Pātai: E hia ngā tamariki a Planck rāua ko Merck?
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