SAN FRANCISCO — In the latest court filing in the battle over Robin Williams’ estate, the late actor’s children say his wife is trying to increase her share of his estate at their expense.

Zachary, Zelda and Cody Williams are asking a judge to dismiss a petition filed by Susan Williams.

The December 2014 petition asked the court to exclude the contents of the Tiburon home that she shared with Williams from the items Williams said the children should have.

The children in their Aug. 14 filing say the estate’s trustees have determined the division of all of Williams’ personal property, and those decisions are final.