He would have been roughly age 17 on 30 June 1484 when he was named moço fidalgo (young nobleman; a minor title then commonly granted to young nobles) by King Dom João II.
Ia mungkin berusia sekitar 17 tahun pada tanggal 30 Juni 1484 ketika ia diberi gelar moço fidalgo (bangsawan muda; suatu gelar minor yang biasanya diberikan kepada para bangsawan muda) oleh Raja Dom João II.