Но если один из сыновей умирал раньше своего родителя или его отец не побывал на киевском столе, то это потомство лишалось права на лествичное восхождение к великому киевскому столу.
But if one of the sons died before his parents or his father never visited Kyiv table, it is deprived of the right to procreate lestvičnoe ascent to great Kyiv table.
But if one of the sons died before his parents or his father had not visited the Kiev throne, it loses the right to offspring lestvichnoe ascent to the great Kiev table.
But if one of the sons died before their parents or his father is not visited at the Kiev desktop, this progeny lost their right to лествичное climb to the great Kiev table.