Name your daughter Zhang with the character purple in the middle and the last character requiring nine or eleven strokes.

Possible names: Zhang Zi'er (Er, a kind of jewelry.) 11 strokes

Zhang Ziyi (ni) (Ni, meaning soft and delicate.) 11 strokes

Zhang Zisha (taken from the idiom "colorful purples and reds".) 9 strokes

Zhang Zimei (rose, meaning beauty, beauty, beauty, graceful style, artistic beauty.) 9 strokes

For reference.