Hunter Biden trial includes a web of family members, spouses and exes: Who's who?

Hunter Biden's felony gun charges trial is underway in Delaware, bringing a slate of family members as supporters and witnesses to the courthouse.

Biden is on trial for three felony charges over whether he lied about being addicted to drugs on a form he filled out to buy a gun in 2018.

Biden has written in depth about his struggles with addiction in his memoir, "Beautiful Things." Prosecutors have already used those words against him, and are likely to call some characters mentioned in the book to the stand.

Here is what to know about members of the Biden family who have come up during the trial:

Hunter Biden trial live updates: Witness Zoe Kestan describes Hunter Biden's 2018 drug use

Who is Hunter Biden's ex-wife?

Kathleen Buhle is Biden's ex-wife. She was called as the second witness in the gun charges trial.

The two were married from 1993 to 2017, and they have three children together.

She told the jury in the Biden federal trial on gun charges about the first time she knew he was using drugs and how she would continue to search his car out of concern for their children, until 2019.

Hunter Biden is now married to Melissa Cohen Biden.

Hunter Biden once romantically involved with Beau Biden's widow Hallie Biden

Hunter's late brother Beau Biden died of cancer at age 46 in 2015.

After Beau's death, Hunter connected with Beau's widow Hallie romantically. Hunter Biden wrote in his memoir that the affair contributed to his divorce from Kathleen.

Hallie and Hunter tried to live together, but the relationship fell apart, according to his memoir.

"It was a giant miscalculation on both our parts, errors in judgment born of a uniquely tragic time," he wrote, saying they tried again when he got sober but it didn't work out. "It felt like a failure of epic proportions."

How many kids does Hunter Biden have?

Hunter Biden has five children.

He has three daughters with his ex-wife Kathleen Buhle named Naomi Biden, Finnegan Biden, and Maisy Biden. In 2019, he welcomed a son with his second wife Melissa Cohen, Beau Biden IV., named after his late older brother.

It was also revealed that he had secretly fathered another daughter with an Arkansas woman named Lunden Roberts in 2018. Her name is Navy Roberts. President Joe Biden first publicly acknowledged his granddaughter in 2023.

Is Jill Biden Hunter Biden's biological mother?

No. Jill Biden is Hunter Biden's stepmother.

Neilia Hunter, Joe Biden's first wife, died in a car accident along with their 13-month-old daughter Amy in 1972.

Joe Biden later married Jill in 1977, and they had one daughter together, Ashley.

Other Hunter Biden trial witnesses include Zoe Kestan, James Biden, Hallie Biden

Zoe Kestan, an ex-girlfriend of Hunter Biden, took the stand Wednesday and testified on Hunter Biden's drug use.

The mother of his youngest child, Lunden Roberts, Hallie Biden and Hunter's uncle James Biden, are also expected to testify.

Contributing: David Oliver, Patricia Talorico, USA TODAY Network

This article originally appeared on USA TODAY: Hunter Biden trial includes wife, ex-wife, ex-girlfriend, Beau's widow