The boy's parents, Shen Jie and his wife Liu Xi, were killed in a crash in Yixing in Jiangsu province in March 2013 and had been undergoing fertility treatment before they died. But five days before they were supposed to have a fertilized embryo transplanted into Liu, both of them passed away in a vehicle accident in March 2013, in the province of Jiangsu in China.
After the accident, the parents of the dead spent a lot of time on trials, they were allowed to use the embryos.
Then there was the issue of citizenship and the surrogate had to travel to China on a tourist visa to give birth to the baby to ensure Chinese citizenship. His grandparents named him Tiantian, or "sweet'".
The four grandparents-in-waiting eventually made a decision to enlist the services of a surrogacy agency in Laos, where it is legal.
All four grandparents submitted DNA samples to prove that they were biologically related to the baby and maintain custody, according to the Beijing News.
"First we thought of using air freight, but none of the airlines were willing to take the thermos-sized bottle of liquid nitrogen where the four embryos were stored", Liu Baojun, a surrogacy expert who assisted the families, told The Beijing News. Last month, the family celebrated Tiantian's 100 days of birth by throwing a small party.
"The eyes are like my daughter, but still a little more like his father", the baby's maternal grandmother, Hu Xingxian, told the Beijing News.
The grandparents have not decided how to tell Tiantian about his background.
Tiantian's paternal grandfather told the newspaper that they didn't want to tell the child the truth about his parents until he was older.
"This child came into the world with sadness". Other babies have their fathers and mothers, but he doesn't.
"For sure we will tell him what happened - what choice do we have?"