Christel

The standard Polish form of this name is Krystyna, but, quite surprisingly for me, there are also some women in Poland with the first name of Christel. Namely, in January of this year, 59 women with this first name were recorded. 43 women had it as a middle name. However Christel didn't rank as a baby name in Poland last year. I think a Christel could celebrate her Polish name day together with Krystyna (13th March, 24th July), or perhaps Krystian (4th December), or maybe even Krzysztof (25th July, 31st October).

This name is also commonly used in The Netherlands.