Prince Augustus Ferdinand of Prussia
He belonged to the House of Hohenzollern , and was the youngest son of Frederick William I of Prussia by his wife , Queen Sophia Dorothea . 
<triplet> Frederick William I of Prussia <subj> House of Hohenzollern <obj> family <subj> Queen Sophia Dorothea <obj> spouse <triplet> Queen Sophia Dorothea <subj> Frederick William I of Prussia <obj> spouse