The erstwhile princely state of Kadathanadu was ruled by Rajas of Kadathanadu, who were of
Nair origin and was feudatories to the
Kolathiri. Around 1750, the ruler of Kadathanadu had adopted the title of Raja, with the explicit consent of the Kolathiri. Harivihar is the 150-year-old residence of the Kadathanadu royal family. Legend has it that the sons of the Kadathanadu rulers were sent to
Calicut to be educated in institutions set up by the
Zamorin of Calicut, and hence a city house was built for the young princes. During
Malayalam Era 965, corresponding to 1789–90,
Tipu Sultan crossed over to Malabar with his army. A small army of 2000 Kadathanadu Nairs resisted the invasion from a fortress in
Kuttipuram near
Nadapuram for a few weeks. This land, whose Sanskrit name is Ghatolkachakshiti, mainly included parts of the present Vadakara taluk. The king of Katthannad was addressed as Vazhunnor. ==References==