A Central Texas man called "one of the most despicable defendants we have ever prosecuted" by a district attorney has been sentenced to 645 years in prison for sexually abusing three children over a period of more than a decade.

Bryant Edward Dulin (Burnet County Sheriff's Office)

Bryant Edward Dulin, 46, of Granite Shoals, about 50 miles northwest of Austin, will have to serve 225 years of that sentence consecutively without the possibility of parole — meaning the earliest he could be released is 2243.

A Burnet County jury found Dulin guilty Monday of nine counts of aggravated sexual assault of a child, one count of aggravated sexual assault of a child under the age of 6, one count of continuous sexual abuse of a child and one count of indecency with a child. He was found not guilty of one count of sexual performance by a child.

The abuse occurred from 2003 until 2016, according to the Burnet County district attorney's office.

During the sentencing phase of the trial Tuesday, a number of witnesses testified that Dulin had been violent with women since the early 1990s and abused drugs, according to the district attorney's office.

One woman said Dulin kicked her stomach while she was pregnant with a child who was later a victim of his sexual abuse. Others said they had not come forward with additional allegations because they were afraid of retaliation by Dulin.

Burnet County District Attorney Sonny McAfee said he was glad that the judge decided to "stack" some of the sentences levied by the jury against "one of the most despicable defendants we have ever prosecuted."

"These jurors had to listen to heart-wrenching facts about a monster that preyed on the young, the weak and vulnerable victims," McAfee said in a statement. "Dulin's victims were those that were least able to defend themselves, and he knew it. He threatened those he did hurt with harm to his victims or even with threats to harm his victims' loved ones while he made the victims watch. … I am proud of the message these jurors sent to other potential predators in our community."