Thethguerk was born among the common folk and entered House Rasthuend. She was generous, humble and skeptical, with a gift for keeping the accounts. From year 210 she was at the head of Mueness until her death. She gave House Rasthuend its name, and its motto: “Let no one have to remind us”. She lived under the rule of Sauchia, Salziark and Mendbrark. She knew hunger in Mueness. She died of hunger in the spring of year 211, at the age of 62. With her death House Rasthuend went out.