If you're asking how to say the name of the ship called the "RMS Queen Mary" in Hebrew, it's:
RMS Queen Mary = Sfinat ha Queen Mary (ספינת הקווין מרי)
Yes, the compound word 'Queen Mary' is a noun, a proper noun; the name of a ship and the name of a person.
Mariel is a form of the name Mary. The Hebrew word for Mary is Miriam, spelled מרים
The Latin word for queen is Regina.
No. The Hebrew word for king is melech (מלך) The Hebrew word for emperor is keysar (קיסר)
Saint Miriam, also known as Saint Mary of Jesus Crucified, was a Carmelite nun of Palestine who is remembered for her mystical experiences, miracles, and devotion to God. She is known for her simplicity, humility, and obedience to God's will. Saint Miriam was canonized by the Catholic Church in 2015.
Yeshu (ישו) is a variation of the Hebrew word for deliverance.
"mahl-KAH"מלכהpronounced: Mal,kah
Usually "MAHL-keh", from the Hebrew "mahl-KAH".
Regina is Latin for queen.
I don't recognize the spelling, but it is very similar to the Hebrew word Malka (מלכה) which means "queen".
Miryam is the name of our blessed Mother, and the Mother of God Jesus.
Mary Queen of Scots. She also invented the word caddie or "cadet"