A Norfolk Superior Court jury on Thursday convicted former Gov. Deval Patrick’s brother-in-law of rape, stalking, kidnapping, witness intimidation and other offenses, Norfolk District Attorney Michael W. Morrissey said.

The jury deliberated for just under one day before finding Bernard Sigh, 67, of Milton guilty in connection with a Dec. 9, 2017, assault on his estranged wife during an hours-long episode at her Milton apartment.

“Despite the added pressure surrounding this case, among other barriers, this victim demonstrated great courage and resolve in pushing through to today’s resolution,” Morrissey said in a statement. “Not every sexual assault or domestic violence victim is positioned to endure the burdens our system places on them. This victim deserves our support and gratitude.”

Sigh’s attorney, Ethan Yankowitz, did not respond to calls seeking comment.

After what prosecutors described as a “planned, prepared attack” on his wife, Sigh was arrested and initially released with GPS monitoring, but he was jailed in February 2018 after he violated a restraining order by emailing her.

Trial Judge Robert C. Cosgrove has set sentencing for June 24. Sigh faces up to 20 years in state prison for the rape conviction and a minimum mandatory sentence of one year for his conviction on stalking in violation of the restraining order.

The case threw a spotlight on Sigh’s criminal history — he was convicted in 1993 in California of raping his wife, Patrick’s sister — and his ties to the governor, who was accused of retaliating against state employees who later sought to have Sigh register as a sex offender.

The Dec. 9 attack was “very similar,” police said, to the circumstances surrounding the California rape, a longtime source of controversy that re-emerged in 2014, when Patrick fired the head of the Sex Offender Registry Board after she pushed to classify Sigh as a sex offender.