You're welcome, Mina
Trying to get your search off the ground. http://www.family-crests.com/family-crest-coat-of-arms/surna...http://feefhs.org/links/czech.htmlhttp://en.wikipedia.org/wiki/Czech_name
If a male surname is a masculine adjective (ending in -ý), the female surname is simply the feminine equivalent. Thus, a girl whose father's surname is Novotný would have the surname Novotná .
If a male surname is a noun, the female surname takes the suffix -ová, making it a feminine adjective:
Novák becomes Nováková
Horáček becomes Horáčková
Svoboda becomes Svobodová
Navrátil (in the literal meaning of "he returned") becomes Navrátilová, i.e. it is not declined into Navrátila (which would stand for "she returned"). Curiously enough, Navrátila also happens to be the genitive and accusative of the male version.