(RESUMÉ - ANGLICKÁ VERZE) This thesis deals with the problems of testamentary succession. The subtitle of the thesis is "Valid legal regulations in comparison with the proposed regulations in the new Civil Code". The headline of the thesis itself suggests that our interest is aimed at the creation of the new Civil Code and its influence on the law of succession. In relation to the prepared new codification of the Czech Civil Substantive Code, the thesis deals mainly with the comparison of the existing valid legal regulations of testamentary succession with the proposed regulations included in the government motion of the new Civil Code. The existing legal institutes are explained, the institutes proposed in the new legal regulations of the ...