Translation of "Grandchild" in Japanese

Where's your grandchild?

あなたの孫はどこ？

The old man was accompanied by his grandchild.

その老人は孫をお供に従えていた。

Shortly before her fiftieth birthday, she received the news about the birth of her grandchild.

50歳の誕生日を迎える少し前に、彼女は孫が生まれたという知らせを聞いた。