Complex sentence: Walchelin had held the castles of Ferrieres-Saint-Hilaire and Chambray for the service of 5 knights, he had 42 and 3/4 in his service, enfeoffed in his lands.
Split into simpler sentences: Walchelin had held the castles of Ferrieres-Saint-Hilaire and Chambray for the service of 5 knights. He had 42 and 3/4 in his service, enfeoffed in his lands.