Duke Friedrich IV of Teck
Duke Friedrich IV of's father was
Duke Friedrich III of Teck and his mother was
Princess Anna of Helfenstein-Blaubeuren. His paternal grandparents were
Duke Ludwig III of Teck and
Princess Margareta of Truhendingen. He had six brothers and six sisters, named
Patriarch Ludwig VI of,
Duke Georg of,
Duke Konrad V of,
Duke Simon III of,
Duke Simon IV of,
Duke Ulrich I of,
Princess Agnes of,
Princess Beatrix of,
Princess Elisabeth of,
Princess Guta of,
Princess Irmela of and
Princess Margarethe of.