Polish names beginning with the "Koo" or "Ku"

What are some Polish names that begin with the sound "Koo" like the first part of "Cooper"?

Coopernicus?

Kunegunda

Kuba

First names or surnames?

Poland's most famous living architect was called Kuryłowicz. But he died a year or so ago. Plenty of surnames begin with Ku. Not many first names.

Why are you asking?

the creator of LSM quarter of Lublin was called Kukuryka