Frīdenbergs was part of a former Latvian Eurovision entry in 2005 and in recent years had been presenting the children's quiz show Gudrs vēl gudrāks on LTV.
News of his death was confirmed by LTV and comes a year after he underwent treatment for cancer after members of the public donated money to send him to Germany for care.
We at LSM express our sincere condolences to Valters' frinds, family and fans.