▁ast ro lo ger ▁Tom ás ▁de ▁Tor res , ▁Di ogo ▁de ▁Ort iz , ▁Bishop ▁of ▁V ise u , ▁and ▁Lu ís ▁Te ix e ira ▁Lob o , ▁one ▁of ▁the ▁first ▁Portuguese ▁Renaissance ▁human ists , ▁re ctor ▁of ▁the ▁University ▁of ▁S ien a ▁( 1 4 7 6 ) ▁and ▁Professor ▁of ▁Law ▁at ▁Ferr ara ▁( 1 5 0 2 ). ▁ ▁John ' s ▁chron ic ler ▁Ant ón io ▁de ▁Cast il ho ▁said ▁that , ▁" Dom ▁João ▁III ▁faced ▁problems ▁easily , ▁complement ing ▁his ▁lack ▁of ▁culture ▁with ▁a ▁practice ▁formation ▁that ▁he ▁always ▁showed ▁during ▁his ▁reign " ▁( E log io ▁d ' el ▁rei ▁D . ▁João ▁de ▁Portugal , ▁ter ce iro , ▁do ▁nome ). ▁In ▁ 1 5 1 4 , ▁he ▁was ▁given ▁his ▁own ▁house , ▁and ▁a ▁few ▁years ▁later ▁began ▁to ▁help ▁his ▁father ▁in ▁administrative ▁duties . ▁ ▁At ▁the ▁age ▁of ▁six teen , ▁John ▁was ▁chosen ▁to ▁marry ▁his ▁first ▁cousin , ▁the ▁ 2 0 - year - old ▁Ele an or ▁of ▁Austria , ▁el dest ▁daughter ▁of ▁Philip ▁the ▁H ands ome ▁of ▁Austria - B urg und y ▁and ▁Queen ▁Jo anna ▁of ▁Cast ile , ▁but ▁instead ▁she ▁married ▁his ▁wid owed ▁father ▁Manuel . ▁John ▁took ▁deep ▁off ence ▁at ▁this : ▁his ▁chron ic lers ▁say ▁he ▁became ▁mel anch ol ic ▁and ▁was ▁never ▁quite ▁the ▁same . ▁Some