Born in August 1434 to Olek and Alice, his father died when he was 7, from that point he was raised by distant relative but close friend Gellan. Alice died giving birth to Decado's brother Olek when Decado was 4 years old. Decado has 3 children, his oldest daughter Alice who was born in February 1452, and the twins, Olek and Kateryn born in July 1455, their mother Isabel dying shortly after they were born.