A watan Maris na 1887 Planck ya auri Marie Merck (1861<unk>1909), 'yar'uwar abokin makaranta, kuma suka koma tare da ita zuwa wani ɗakin da ke cikin Kiel. Suna da 'ya'ya hudu: Karl (1888<unk>1916), tagwaye Emma (1889<unk>1919) da Grete (1889<unk>1917), da kuma Erwin (1893<unk>1945). Tambaya: Yara nawa ne Planck da Merck suke tare?
huɗu