Complex sentence: Luis Trenker died at the age 97 on 13 April 1990 in Bolzano and was buried in his family's plot at St. Ulrich in Gröden.
Split into simpler sentences: Luis Trenker died on 13 April 1990 in Bolzano at the age 97. He was buried in his family's plot at St. Ulrich in Gröden.