Miriam (Miryam)
מִרְיָם
There are two women in the Bible called Miriam. One of them is Moses's sister.
"And Miriam the prophetess, the sister of Aaron, took a timbrel in her hand, and all the women went out after her with timbrels and with dances." Exodus 15, 20

Same Woman
Moses and Aaron where brothers...so the 2 Miriam's from the Bible are the same.