Sentence:  Soo this yonge syre Trystram rode vnto his <WSD>eme</WSD> kynge Marke of Cornewayle / ¶ And whanne he came there / he herd say that ther wold no knyghte fyghte with syre Marhaus / Thenne yede sir Tristram vnto his <WSD>eme</WSD> and sayd / syre yf ye wylle gyue me thordre of knyghthode / I wille doo bataille with syr Marhaus<!--Prior quote:So aftir this yonge Trystrames rode unto his <WSD>eme</WSD>, Kynge Marke of Cornwayle, and whan he com there he herde sey that there wolde no knyght fyght with Sir Marhalt.--> 
Meaning of the word marked with <WSD> tags:  An uncle.