From what I understand, when Gonzalo was in Kiev, his family was in Kharkov. When Gonzalo arrived in Kharkov, his family had already left Ukraine, although it is unclear how his wife and two kids escaped from Ukraine. Then, I remember Gonzalo saying they were "in a safe location and far, far away from here." Understandably, he avoided giving too many details with regards to the location of his family once he arrived in Kharkov.
Ohh, if that should really be the case then I’m quite misinformed about that detail! I would like to know where he said that exactly. I was under the impression that when he came to Kharkov that he said he choose to hide „underground“ seperatley of his family (to protect them in case they find him), while they reside somewhere else in the city, relatively „safely“.