UPDATE: The trial ended June 18. Judge Jay Rosman has reserved a ruling. 

Christopher Rauschenberg, the son of the late artist Robert Rauschenberg, took the stand today to discuss his father’s foundation.

He is the president and board chair of the Robert Rauschenberg Foundation, which is in a legal battle with the trustees of the artist’s estate.

Christopher said the foundation provides – among other things – grants to arts organizations and artists.

The trustees, who are seeking $60 million from the estate, claim one of the reasons they should be paid that much is because they increased the value of the artist’s work after he died in 2008. They’ve already paid themselves almost $6 million.

The trustees’ lawyer argues this additional money can further the foundation’s causes.

Christopher Rauschenberg said the trustee’s numbers are not correct. He said his father’s art will be insured for less than $550 million for the upcoming year.

The foundation said the amount the trustees are seeking is unreasonable and they should be paid much less.

The trial is expected to end Thursday.

Robert Rauschenberg was an experimental painter known mainly for his works combining found objects and paint. He spent much of his later years on Captiva.