This is the 9745th most frequent Japanese word.
蓉子
"蓉子" is a Japanese feminine given name, typically written using kanji that can mean "lotus child" or "beautiful child," depending on interpretation.
In this sentence, '蓉子' is used as a proper noun to refer to a person named Yoko.
蓉子は私の友達です。
Yoko is my friend.
Here, '蓉子' is used as the subject who performed the action of making the cake.
昨日、蓉子が作ったケーキは美味しかった。
The cake that Yoko made yesterday was delicious.
In this instance, '蓉子' refers to the name itself, discussing its rarity among names.