 Kenneth's son, Roderick Mackenzie, built a new mansion called Rosehaugh House, although in Alexander Mackenzie's 19th century history it was still referred to by the old Munro name of "Pittonachty" (Pittonachy).This mansion was demolished in 1959.Intrepid Scottish-Canadian explorer Sir Alexander Mackenzie, the first European to explore the great Canadian river now known as the Mackenzie River, crossing North America twice, to the Arctic Ocean in 1789 and Pacific Ocean in 1793, retired to Avoch in 1812 where he died in 1820 and was buried in the old Avoch Parish churchyard.